Search Results: Surangular bone

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Surangular
Minggu, 2026-05-10 23:52:34

The surangular is a jaw bone found in most land vertebrates, except mammals. The surangular makes up the upper portion of the back half of the outside...

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Ichthyotitan
Minggu, 2025-09-28 21:56:40

contains a single species, I. severnensis. It is known from two fragmentary surangular bones of the lower jaw, discovered in separate places in 2016 and 2020...

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Trix (dinosaur)
Minggu, 2026-02-08 21:30:54

an infection in the right upper jaw and there are bite traces in the surangular of the left lower jaw. This may have been caused by a male T. rex during...

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Siamraptor
Minggu, 2026-04-12 05:32:25

from the Aptian. It consists of a rear right lower jaw including the surangular, prearticular and articular. Further material referred to S. suwati includes...

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Velociraptor
Rabu, 2026-04-29 09:01:00

surface. On its posterior end, it meet the surangular. It had a small hole near its posterior end, called surangular foramen or fenestra. Both bones were the...

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List of informally named Mesozoic reptiles
Selasa, 2026-06-02 11:51:09

Surangular of Ichthyotitan (A) and "Aust Colossus" (B)...

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Jaw
Kamis, 2025-12-18 13:59:53

the braincase, while the lower jaw bones (dentary, splenial, angular, surangular, and articular) have been fused together into a unit called the mandible...

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Synapsida
Sabtu, 2026-05-30 22:24:37

conglomeration of smaller bones (including the dentary, articular, angular, surangular and others). In the evolutionary line of mammals these jaw bones other...

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Monolophosaurus
Jumat, 2026-05-22 12:14:06

combination of a kinked suture between the angular and the surangular, and the basal trait of the surangular reaching the rear jaw edge. The rather small foramen...

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Kuru kulla
Rabu, 2025-10-01 01:05:34

premaxillary bone, the right lacrimal bone, a partial right dentary, the right surangular bone, 14 presacral vertebrae, three caudal vertebrae, fragments of both...

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Glossary of dinosaur anatomy
Kamis, 2026-05-28 20:09:36

the jaw articulation. It opens dorsally, and is laterally walled by the surangular and medially by the prearticular; as the latter is usually much lower...

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Probainognathus
Sabtu, 2025-10-04 04:44:30

articular bones like in more basal synapsids, but also the squamosal and surangular bones. A joint between the dentary and squamosal bones, as seen in modern...

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Tanystropheus
Senin, 2026-05-11 22:05:43

a large portion of the surangular, rather than the surangular acting as the overlapping bone where they meet. The surangular internally bears a large...

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Kileskus
Senin, 2026-04-20 02:07:46

(Russia). Fossils recovered include the holotype maxilla, a premaxilla, a surangular, and a few bones from the hand and foot. Additional remains referred to...

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Khok Kruat Formation
Jumat, 2026-05-15 06:40:36

cranial and postcranial skeleton comprising premaxilla, maxilla, jugal, surangular, prearticular, articular, vertebrae, manual ungual, ischium, tibia, and...

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Eotyrannus
Jumat, 2026-02-06 04:14:05

containing foramina that perforate the body of the surangular, a low coronoid process on the surangular with a concave area located caudodorsally, and an...

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Lambeosaurus
Jumat, 2026-02-20 00:26:06

bottom margin of the jaw below the surangular and behind the dentary. The prearticular is a thin bone bracing the surangular and angular from the inside of...

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Brachyrostra
Senin, 2026-04-20 10:21:51

of paracraniokinesis in which the dentary bone articulates against the surangular bone, further jointing the lower jaw and hypothetically allowing this...

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Yutyrannus
Rabu, 2026-05-13 08:05:40

fenestra, the main opening in the outer side, is mainly located in the surangular. The described specimens of Yutyrannus contain direct evidence of feathers...

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Allosauridae
Rabu, 2026-02-04 00:49:09

frontals and a loose articulation between the dentary and the angular/surangular. This cranial kinesis would have dampened forces on the bones of the skull...

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Gigantoraptor
Jumat, 2026-03-06 00:46:46

found, which likely supported a rhamphotheca. Both angular and articular-surangular-coronoid (ASC) complex are comparatively smaller than the dentary. The...

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Masiakasaurus
Sabtu, 2025-10-25 22:11:38

which line a socket which connects to the surangular bone at the back of the lower jaw. Although the surangular bone is not preserved, several other bones...

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Eremosuchus
Minggu, 2026-05-17 23:49:43

the mandible, specifically the back of the surangular, angular and the entire articular bone. The surangular is described as being expanded towards the...

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Cedar Mountain Formation
Selasa, 2026-05-19 00:07:59

Eolambia E. caroljonesa Mussentuchit Member Predentaries, dentaries, surangulars, premaxillae, nasal, maxillae, jugals, postorbitals, quadrates, spuamosal...

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Dracovenator
Minggu, 2025-12-21 10:51:47

premaxillae, a fragment of the maxilla, two dentary fragments, a partial surangular bone, a partial angular bone, a partial prearticular bone, an articular...

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Postosuchus
Sabtu, 2026-05-30 10:06:34

lower jaw), formed by the junction of the dentary with other jaw bones (surangular and angular). Postosuchus likely had very good long-distance sight, due...

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Splenial
Senin, 2026-03-16 02:43:07

located on the lingual side (closest to the tongue) between the angular and surangular. The splenial and coronoid are together known as the paradental elements...

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Heleosaurus
Senin, 2025-03-31 03:46:30

to the species; these are the trunk osteoderms, ornamentation on the surangular and angular, and a longitudinal median groove ventrally placed on the...

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Batyrosaurus
Selasa, 2025-05-20 03:58:21

horizontal trough below the suture with the lacrimal. The joint surface of the surangular is pierced by a foramen. Among the material found was an about four centimetres...

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Sirindhorna
Selasa, 2025-10-07 08:46:01

postorbital, one right premaxilla, a left and right maxilla, a right jugal, surangular, and quadrate, one predentary, a right and left dentary, and assorted...

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Lythronax
Selasa, 2026-05-19 01:59:24

laterosphenoid, the right palatine, the left dentary, the left splenial, the left surangular, the left prearticular, a dorsal rib, a caudal chevron, both pubic bones...

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Coahomasuchus
Sabtu, 2026-03-21 21:31:53

of the neck, as well as the relative lengths of the processes of the surangular. Heckert, A. B., and Lucas, S. G. (2000). Taphonomy, phylogeny, biostratigraphy...

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Eosphorosuchus
Rabu, 2026-05-20 06:14:37

both the reinforced postorbital bone and a large accommodation on its surangular, suggesting unusually well-developed mandibular adductor musculature....

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Dentaneosuchus
Rabu, 2026-05-20 06:28:35

wave, as it is too poorly preserved to determine. Both the angular and surangular bone contribute to the mandibular fenestra and form the back of the lower...

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Acrocanthosaurus
Sabtu, 2026-05-30 06:29:35

Giganotosaurus shared a thick horizontal ridge on the outside surface of the surangular bone of the lower jaw, underneath the articulation with the skull. The...

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Nanotyrannus
Kamis, 2026-05-21 11:39:10

a clear line of separation between the dentary at the front, and the surangular and angular bones at the back. The premaxillary teeth of Nanotyrannus...

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Murusraptor
Rabu, 2025-10-08 19:30:55

high. In the lower jaw, the surangular shows a bone shelf at its outer side, under the groove between the front surangular opening and the notch for the...

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Beipiaosaurus
Kamis, 2026-04-30 21:56:04

anterior and posterodorsal (top-rear) portions, the part of the left surangular, and part of the left angular. The dentary is around sixty-five percent...

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Hadrosauromorpha
Kamis, 2026-04-16 05:41:48

asymmetrical and have multiple vertical ridges; there is a foramen in the surangular; and the quadrate bone has a more prominent depression for the articulation...

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Tyrannosauroidea
Minggu, 2026-05-31 02:59:13

a D-shaped cross section. In the lower jaw, a prominent ridge on the surangular bone extends sideways from just below the jaw joint, except in the basal...

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Bowfin
Senin, 2026-05-04 02:19:41

three bones make up the lower jaw: the dentary, the angular, and the surangular. The cranial surface of the skull is made up of the nasals, the antorbital...

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Segnosaurus
Senin, 2026-04-13 12:32:23

to contact the surangular bone behind it; by contrast, the hind part of the dentary in Erlikosaurus gradually approached the surangular in a gentle arc...

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Mosasaurinae
Selasa, 2026-05-05 14:52:28

Suprastapedial process of quadrate distally expanded. Dorsal edge of surangular thin lamina of bone rising anteriorly to posterior surface of coronoid...

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Proterochampsia
Minggu, 2026-01-25 23:05:31

prefrontal, separating lacrimal and nasal; a strongly convex dorsal margin of surangular and palatal teeth that are inserted into alveoli. Some of the synapomorphies...

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Beibeilong
Senin, 2025-12-22 00:21:17

surangular). It was connected to the top border of the dentary through an articular depression. The articular (bone located just below the surangular)...

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Irritator
Senin, 2026-05-25 15:02:12

lower jaw was deep, its rear upper surface consisting mainly of the large surangular bone, which articulated with the shallower angular bone below it. The...

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Anatosuchus
Senin, 2026-02-23 12:51:45

mandibular fenestra. Both angular and surangular extend to the top of the coronoid process, and the surangular forms much of the jaw articulation. The...

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Sinosauropteryx
Senin, 2026-05-18 07:23:03

fenestra was elliptical but not enlarged, the dentary was robust, the surangular was narrow and elongated, and the dentition is extremely well developed...

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Dryptosaurus
Rabu, 2026-06-03 23:52:12

fragmentary right maxilla, a fragmentary right dentary, a fragmentary right surangular, lateral teeth, 11 middle-distal caudal vertebrae, both the left and right...

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Protoceratops
Rabu, 2026-05-27 04:38:19

large element composed of the predentary, dentary, coronoid, angular and surangular. The predentary (frontmost bone) was very pointed and elongated, having...

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Adamantinasuchus
Minggu, 2025-03-30 03:10:55

remaining between angular and surangular. The dorsal end of the dentary extends posteriorly around part of the surangular; the outer surface of the dentary...

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Huadanosaurus
Kamis, 2026-04-30 22:18:22

stronger bite force than its relatives. For example, there is a prominent surangular shelf on the lower jaw, indicating a strong adductor muscle for closing...

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Achelousaurus
Minggu, 2026-04-26 22:07:31

parietals, and the lower jaws are limited to their upper rear bones, the surangulars and articulars. A fifth specimen is MOR 456.1, a subadult. None of the...

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Diamantinasaurus
Jumat, 2026-01-16 00:24:01

the skull, including a left squamosal, nearly complete braincase, right surangular, and various fragments. Additionally, the specimen also includes the atlas...

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Parareptilia
Minggu, 2026-04-12 05:02:49

inner surface of the jaw) reach as far back as the coronoid process. The surangular bone, which forms the upper rear part of the jaw, is narrow and plate-like...

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Megalosaurus
Kamis, 2026-06-04 06:38:04

vertically grooved; the same combination is shown by Piatnitzkysaurus. The surangular has no bony shelf, or even ridge, on its outer side. There is laterally...

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Kamuysaurus
Kamis, 2025-08-07 23:50:07

of the element. This is unique for the Hadrosauridae as a whole. The surangular bone of the lower jaw has only a short ascending branch, not reaching...

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Peloroplites
Sabtu, 2025-10-04 14:18:08

and right mandibles are preserved and include the articular, angular, surangular and prearticular. The posterior surface is remodelled on the sides and...

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Dilophosaurus
Senin, 2026-06-01 18:40:31

foramen ran along the outer side of the dentary. The side surface of the surangular bone had a unique pyramidal process in front of the articulation with...

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Herrerasaurus
Minggu, 2026-05-03 03:35:16

and the presence of a slender ribbed posterodorsal dentary process; the surangular bone has a forked anterior process for articulation with the posterodorsal...

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Gallimimus
Minggu, 2026-05-17 22:02:46

beak) was well developed and consisted mainly of the angular bone. The surangular was the largest bone of the lower jaw, which is usual in theropods. The...

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Neopteroplax
Senin, 2025-09-29 15:57:01

due to a small number of skull and jaw features, most notably a lower surangular at the upper rear portion of the lower jaw. The type species, Neopteroplax...

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Cotylorhynchus
Selasa, 2026-05-05 11:27:30

medial edge of the bone, the presence of teeth on the parasphenoid, and a surangular overlapping the posterodorsal tip of the dentary and excluding it from...

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Gobivenator
Senin, 2025-09-29 05:06:47

anterior end, and a fossa is present on the surangular of the lower jaw, in front of the rear surangular foramen. Two other traits are possible autapomorphies:...

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Jiangjunosaurus
Kamis, 2025-05-29 05:05:46

continues to the rear into a high coronoid process. Between dentary, surangular and angular a rather tall triangular mandibular fenestra is present. The...

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Mapusaurus
Senin, 2026-06-01 00:55:20

theropod similar to Giganotosaurus. By that time, an isolated tooth, a surangular, a caudal (tail) vertebra, a manual ungual, an incomplete pelvis, femora...

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Thanatotheristes
Rabu, 2026-04-29 02:52:37

7) is based on a right maxilla, right jugal, right postorbital, right surangular, right quadrate, right laterosphenoid, left frontal, and both dentaries...

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Barinasuchus
Jumat, 2026-05-29 07:54:01

anterior tip of the rostrum to the posterior (rear) end of the damaged surangular, measures 70 cm (28 in) in length, and 41 cm (16 in) in height. Based...

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Rauisuchus
Minggu, 2026-05-03 02:48:14

squamosal, left jugal, right pterygoid, right nasal, both splenials, left surangular, prearticular and angular, odontoid(?), axis, cervical, dorsal and caudal...

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Helioscopos
Kamis, 2025-04-03 14:29:31

bones. The sphenoid and basioccipital bones are fully fused, as are the surangular and prearticular bones. These skull characteristics are generally recognized...

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Plesiotylosaurus
Selasa, 2026-05-05 14:53:05

medial C-shaped excavation. Deep longitudinal sulcus on medial face of surangular. Cervicals with reniform central articulations and prominent zygosphenes...

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Puercosuchus
Kamis, 2026-04-23 01:55:38

by the tooth-bearing dentary, the angular, prearticular, and the fused surangular and articular. The dentary is long, slender and straight edged along its...

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Newtonsaurus
Selasa, 2026-05-05 13:55:24

front half of the lower jaw, up to the boundary between the dentary and surangular, with the back half of the lower jaw having been broken away before fossilisation...

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Tenontosaurus
Selasa, 2026-03-31 08:04:39

of each mandibular ramus, were long and curved. Ostrom noted that the surangulars likely formed most of the lateral surface of the mandible at the level...

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Banji
Sabtu, 2025-08-02 08:57:49

tubercles are present along the lateral shelf at the dorsal margin of the surangular.[citation needed] In 2024, Andrea Cau considered it likely that Banji...

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Tylosaurus
Minggu, 2026-05-31 23:19:26

and the lower jaws include the dentary, splenial, coronoid, angular, surangular, and prearticluar-articular (like other squamates, the prearticular is...

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Gongshuilong
Senin, 2026-04-06 04:29:55

skull bones (maxilla, nasal, and postorbital), mandibular elements (surangulars), four cervical (neck) vertebrae, a partial posterior (rear) dorsal (trunk)...

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Gobiosuchidae
Kamis, 2026-05-21 07:37:30

longitudinal ridges Presence of a sharp ridge along ventral surface of angular Surangular with a longitudinal ridge on its dorsolateral surface Dorsal surface of...

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Prestosuchus
Selasa, 2026-01-13 01:01:46

of the mandibular fenestra is mainly bound by the angular, while the surangular forms its upper border. Bones at the rear of the lower jaw have proportions...

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Laganosuchus
Senin, 2025-05-05 08:39:11

coronoid process is rugose, low and broad transversely, thickened by the surangular on the lingual side of the jaw, possibly signifying the attachment of...

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Eoalligator
Rabu, 2026-04-15 01:58:46

just shy of actually participating in this region. The upper edge of the surangular is of the same height as the ridge that sits towards the back of the mandibular...

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Sinovenator
Kamis, 2025-10-02 23:28:19

The frontal bone shows a vertical ridge touching the lacrimal bone. The surangular in the lower jaw has a T-shaped cross-section. The shinbone has a vertical...

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Probrachylophosaurus
Jumat, 2026-05-29 19:35:13

quadrate bones, the predentary of the lower jaws, both dentaries, a right surangular, eleven neck vertebrae, eleven back vertebrae, twenty-nine tail vertebrae...

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Articular bone
Sabtu, 2024-10-26 19:22:05

either remains cartilaginous or disappears. In snakes, the articular, surangular, and prearticular bones have fused to form the compound bone. The mandible...

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Aerosaurus
Senin, 2026-05-18 22:19:30

posterodorsal process that extends into the lower jaw and overlapping the surangular. The angular and prearticular bones are long with the splenial almost...

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Polonosuchus
Minggu, 2026-05-03 02:48:06

palatines and quadrates, the left jugal, the right pterygoid, quadratojugal, surangular, articular, squamosal and lacrimal, and fragments of the dentary. There...

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Poposauroidea
Rabu, 2026-05-27 01:36:10

  Frontal   Jugal   Postorbital   Postfrontal   Pareital   Squamosal   Quadrate   Quadratojugal   Surangular / Articular   Prearticular   Angular   Dentary...

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Tlatolophus
Jumat, 2026-03-27 18:20:21

almost complete skull, complete with lower jaws. CIC/P/147 only lacks the surangular and quadrate bones. Tlatolophus's skull is relatively tall. Its premaxilla...

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Rugarhynchos
Kamis, 2025-10-02 17:46:52

considered part of the palate. The only preserved portion of the jaw is a left surangular, although a large right pterygoid fragment was originally considered an...

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Taoheodon
Jumat, 2025-10-03 19:06:38

mostly known from part of the dentary, with portions of the angular, surangular and splenial bones. The dentary is large and robust, with a rough, pitted...

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Acaenasuchus
Senin, 2025-12-15 20:42:14

pits. The articular facet is broad. The surangular articulates the articular. The lateral side of the surangular is ornamented in the form of long ridges...

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Camarasaurus
Rabu, 2026-06-03 02:02:56

side surface of the lower jaw had an oblique groove running from the surangular bone forwards and downwards to the lower margin of the dentary bone. Known...

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Probainognathidae
Selasa, 2026-05-19 08:37:45

probainognathids also had an incipient contact between the squamosal and surangular bones. The canine teeth were large and labio-lingually compressed, and...

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Nundasuchus
Sabtu, 2026-02-07 19:48:48

pterygoid, nearly complete right dentary, the right splenial, the right surangular, and isolated teeth, as well as the following postcranial bones: a partial...

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Westbury Formation
Jumat, 2025-10-03 16:01:59

adult." Ichthyotitan I. severnensis Blue Anchor and Lilstock Two partial surangulars Possibly one of the largest marine reptiles Picrodon P. herveyi Wedmore...

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Manidens
Senin, 2026-04-20 15:06:58

the coronoid process of the dentary with the anterior foramen of the surangular featuring a wide, anteriorly developed fossa that becomes fusiform posterior...

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Prognathodon
Selasa, 2026-05-05 14:53:10

coronoid abrupts over the surangular and makes contact with the posterior process of the dentary or ends with the surangular without contacting the dentary...

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Xinpusaurus
Kamis, 2025-10-02 17:16:41

genus show two different forms of dentary-surangular sutures, either a v-shaped suture with the surangular cutting into the dentary from the side (type...

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Tylosaurinae
Sabtu, 2026-05-30 22:26:55

process of quadrate moderately large, distally pointed. Dorsal edge of surangular rounded and longitudinally horizontal...Twenty nine presacral vertebrae...

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Spectrovenator
Sabtu, 2026-04-25 22:46:58

jaw) with a deep sulcus on the lateral surface; the dorsal margin of the surangular is slightly convex; and a longitudinal ridge along the posteroventral...

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Europasaurus
Selasa, 2026-05-19 03:46:05

quadratojugal), a partial braincase, multiple mandible bones (dentary, surangular and angular), large amounts of teeth, cervical vertebrae, sacral vertebrae...

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Venaticosuchus
Selasa, 2026-03-24 14:31:45

were also considered missing until 2015, when quadratojugal, quadrate, surangular, articular, and angular bones from the right side of the skull were rediscovered...

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Stygivenator
Jumat, 2026-03-13 10:31:56

both maxillae, teeth, nasals, frontals, a parietal, and portions of the surangular and dentaries. Though originally considered to include one tooth from...

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Mosaiceratops
Rabu, 2025-08-06 03:20:09

rostral bone, premaxilla, maxilla, jugal bone, quadratojugal, dentary, surangular, angular bone, the anterior section of the prefrontal bone, and the anterior...

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Confuciusornis
Jumat, 2026-03-06 16:06:26

process as seen in other taxa. The surangular enclosed two mandibular fenestrae. The hindmost part of the surangular had a small foramen placed in the...

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Medullary bone
Rabu, 2026-01-14 03:08:04

When present in the skull, MB was always found in the pterygoid and/or surangular. When present in the caudal sacrum, it is also present in the pygostyle...

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Athabascasaurus
Rabu, 2026-03-25 03:31:59

passed through. The rear part of the lower jaw externally is formed by the surangular and angular, with the latter overlapping the former and constituting the...

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Bajadasaurus
Selasa, 2026-05-19 02:52:10

the lower jaw, the angular bone was very elongated and longer than the surangular bone, unlike in diplodocids. The teeth of Bajadasaurus pronuspinax had...

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Euhelopus
Minggu, 2025-11-16 14:42:53

Left dentary and surangular bones...

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Tethysaurus
Kamis, 2025-10-02 06:25:45

by three foramina; splenial with a large notched dorsomedial process; surangular exposed medially ventral to the coronoid; dental formula: 19-20 maxillary...

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Foremost Formation
Jumat, 2026-03-06 04:08:10

Thanatotheristes T. degrootorum right maxilla, right jugal, right postorbital, right surangular, right quadrate, right laterosphenoid, left frontal, and both dentaries...

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Dynamosuchus
Senin, 2026-03-09 11:14:42

Venaticosuchus. The surangular is similar to that of Riojasuchus, with a pronounced blade-like crest on its outer surface and a large hole (a surangular foramen)...

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Doratodon
Selasa, 2026-04-28 23:04:07

second raise peaks with the 10th before more gently transitioning into the surangular bone. This wave-like toothrow is however less pronounced in D. carcharidens...

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Adasaurus
Selasa, 2026-03-24 22:41:27

projection of the maxillary; recurved lacrimal; lower jaw with a prominent surangular foramen; irregular triangular projection on the quadrate shaft; pleurocoels...

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Palatodonta
Minggu, 2026-01-25 23:01:53

back in the jaw. The rear of the jaw includes a low coronoid, a thin surangular, and an elongated angular which likely contains the jaw joint. The palatine...

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Chenanisuchus
Minggu, 2025-03-30 03:13:51

anterolateral postorbital process Large participation of the quadratojugal and surangular to the jaw joint Chenanisuchus lateroculi has an estimated adult length...

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Eoscincus
Minggu, 2025-06-01 15:50:00

grown or nearly so due to the complete fusion of the prearticular and surangular bones. Phylogenetic studies of early-diverging squamates have not yielded...

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Eurycephalosuchus
Kamis, 2026-04-16 03:04:32

participate in forming the mandibular fenestra are the angular and the surangular. The angular bone forms the lower part of the posterior mandible, coming...

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Dubreuillosaurus
Kamis, 2026-02-05 15:21:28

skull; the splenial and angular of the lower jaw, a natural mold of the surangular, two cervical vertebrae, cervical ribs, seven dorsals, ribs, gastralia...

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Whitakersaurus
Minggu, 2026-01-25 23:07:46

but there may be a suture present where the dentary was joined to the surangular. A small groove is present on the lingual side of teeth 16-18. The right...

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Taytalura
Senin, 2026-04-13 13:36:07

much smaller than in squamates. The back of the jaw is composed of the surangular (which is mostly exposed externally), the angular and prearticular (which...

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Mesosuchus
Senin, 2026-01-12 21:57:46

elements present in the lower jaw of the Mesosuchus: dentary, splenial, surangular, angular, prearticular, and articular. Evident on SAM 5882, 6046, and...

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Cymbospondylus
Sabtu, 2026-06-06 04:27:06

jaw, extends almost to the level of the middle of the eye socket. The surangular also represents an important part of the mandible, and thins down to the...

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Ventastega
Rabu, 2025-07-30 11:06:59

within the marginal row of teeth. On the lower jaw, Ventastega had a surangular pit line, which is present in most Sarcopterygians but unknown in any...

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Sciroseps
Jumat, 2025-10-03 06:06:41

surangular notch, angular clasping of the surangular process of the dentary, coronoid process less exposed laterally between coronoid and surangular,...

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Askeptosaurus
Minggu, 2025-08-10 11:11:29

rises up in the rear half of the jaw, above the low but elongated surangular. The surangular lacks a retroarticular process behind the jaw joint, but it does...

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Kaiparowits Formation
Minggu, 2026-04-26 06:41:13

parietals, braincase, ectopterygoids, epipterygoid, pterygoids, angulars, surangulars, prearticular, articular, atlas, postaxial cervical vertebrae, cervical...

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Plioplatecarpinae
Minggu, 2026-05-03 11:58:12

quadrate large, bluntly terminated and with parallel sides. Dorsal edge of surangular rounded and longitudinally horizontal...Twenty-nine or less presacral...

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Linhevenator
Minggu, 2025-09-28 19:36:33

autapomorphies (unique traits) include a jugal with a lateral flange, a surangular crest that is anteroventrally oriented, the presence of medial expansion...

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Abyssosaurus
Selasa, 2026-04-14 22:17:19

mandible is incompletely known, preserving only part of the dentary, the surangular, angular, and articular. The cervical (neck) column of Abyssosaurus is...

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Iberosuchus
Senin, 2025-12-01 13:40:10

full of wrinkles on the lateral dorsal side, for muscle attachment to surangular. The teeth that are recovered are all labiolingually compressed with denticles...

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Fukuipteryx
Sabtu, 2026-04-25 13:06:53

It consists of a partial skeleton with a lower jaw. In total, a right surangular, two cervical vertebrae, four back vertebrae, two sacral vertebrae, five...

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Winton Formation
Kamis, 2026-06-04 05:50:58

Diamantinasaurus. Diamantinasaurus D. matildae A squamosal, quadrates, braincase, surangular, atlas intercentrum axis, cervical vertebrae, middle cervical neural arch...

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Spinophorosaurus
Kamis, 2026-05-07 03:14:42

braincase, a postorbital bone, a squamosal, a quadrate, a pterygoid, a surangular, and a nearly complete postcranial skeleton, which lacks the sternum,...

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Junggarsuchus
Sabtu, 2026-03-21 01:25:11

surangular is short in the jaw of Junggarsuchus and does not have significant contact with the angular. However, it is possible that the surangular has...

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Kyhytysuka
Minggu, 2025-10-19 14:36:48

it being made up by the extensive splenial bone. In lateral view the surangular contributes more to the surface of the mandible than the angular. The...

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Magnamanus
Senin, 2026-04-27 08:34:59

maxilla, a piece of premaxilla, a left dentary piece, a piece of the right surangular, pieces of the hyoid apparatus, loose edges of alveolar ridge, sixty two...

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Besanosaurus
Minggu, 2026-05-17 23:46:56

the dentaries, the large surangulars form the top portion of the rear part of the lower jaw. The upper margin of each surangular bears two eminences, a...

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Scipionyx
Rabu, 2026-01-28 20:28:11

mistaken for a supradentarium and the angular was misidentified as the surangular because in the fossil it had been displaced upwards, creating the false...

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Rhamphosuchus
Jumat, 2026-06-05 17:07:42

margins of the mandible diverge rather than run parallel to each other. The surangular extends into the space between the splenial and dentary, but like the...

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Baru
Sabtu, 2026-05-30 07:52:28

The sides of the mandibular ramus of Baru is heavily sculpted. On the surangular bone, the edge of this sculpted area is bordered by a ridge that projects...

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Orientalosuchus
Rabu, 2026-04-15 00:34:06

the underside of the fenestra and at the top the dentary-surangular suture and the surangular-angular suture both lie very close to one-another. The dentition...

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Taurovenator
Senin, 2026-04-20 10:54:36

(main palate bone), right ectopterygoid (smaller palate bone), both surangulars and angulars (back of lower jaw bones), prearticulars (rearmost lower...

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Akainacephalus
Senin, 2025-09-29 08:01:36

total number of alveoli is unknown as they have been eroded away. The surangular, along with the posterior margin of the dentary, contributes to the tallest...

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Vancleavea
Selasa, 2026-04-28 20:54:59

at the front of the maxilla would have received the dentary fang. The surangular and angular (a pair of untoothed bones in the rear part of the lower jaw)...

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Eothyris
Kamis, 2025-10-02 02:55:50

face, the lower jaw does not have a slender build. Dentary, angular, and surangular are visible on the outer surface, and also, the lower edge of the splenial...

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Riojasuchus
Senin, 2026-05-18 20:24:11

in the shortest adult skull with mandibular fenestra; the top of the surangular laterally pointed, and with a small prearticular process; short atlas...

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Procuhy
Sabtu, 2025-10-04 10:33:54

times its width; in the mandible, presence of postglenoid process of the surangular separated from the retroarticular process of the articular by the mandibular...

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Parvinatator
Kamis, 2025-11-27 23:42:24

are as follows: The retroarticular process, composed of the articular, surangular, and angular, is present and well developed. This is suggested to be a...

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Dianopachysaurus
Selasa, 2026-05-19 00:53:48

supraoccipital is exposed, but it has a deeply concave posterior margin. The surangular, which is only exposed in the postorbital region, has no lateral ridge...

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Turfanosuchus
Minggu, 2026-05-17 23:35:11

the jaw) from forming the lower border of the mandibular fenestra. The surangular, which forms the upper rear portion of the jaw (and the upper border of...

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Clidastes
Selasa, 2026-05-05 14:52:34

wing Irom angular contacts or nearly contacts coronoid. Dorsal. edge of surangular very thin Iamina of bone rising anteriorly to position high on posterior...

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Qianosuchus
Jumat, 2026-05-15 07:05:24

  Frontal   Jugal   Postorbital   Postfrontal   Pareital   Squamosal   Quadrate   Quadratojugal   Surangular / Articular   Prearticular   Angular   Dentary...

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Brazilichthys
Minggu, 2026-04-12 20:13:05

towards the front of the bone. Other than the dentary, the angular and surangular are the only other external elements of the jaw that are present in the...

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Aiolosaurus
Selasa, 2026-05-26 02:23:41

called the septomaxillary foramen. Near the jaw joint, a hole in the surangular bone of the lower jaw that is positioned underneath the coronoid process...

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Garudimimus
Senin, 2026-05-04 13:49:43

foramina were developed on the lateral surfaces of the dentary tip. The surangular was the second large mandibular element and formed the upper border of...

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Guizhouichthyosaurus
Minggu, 2026-02-15 12:45:55

outwardly-directed projections. The space between the pterygoids is large. The surangulars (upper rear lower jaw bones) bear deep depressions that are confluent...

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Jianianhualong
Jumat, 2025-09-26 06:47:21

towards the back of the bone. A distinct fossa on the top surface of the surangular bone separates Jianianhualong from other troodontids. The angular bone...

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Manubrantlia
Senin, 2025-09-29 03:45:20

the lateral face of the mandible is formed by the surangular bone. The rear tip of the surangular forms a bony projection known as an arcadian process...

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Austriadraco
Senin, 2025-11-17 07:33:33

opening is present, the mandibular fenestra. The coronoid process of the surangular bone is low. The shoulder blade is considerably longer, 62%, than the...

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López de Bertodano Formation
Kamis, 2026-06-04 20:15:29

end of basisphenoid, right coronoid, right angular, splenial and right surangular, a broken marginal tooth and several pterygoid teeth have been associated...

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Canardia
Selasa, 2025-09-30 03:01:50

right postorbital, a left quadrate, a right pterygoid, a partial left surangular, a right articular, an isolated dentary tooth crown, and a partial dental...

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Leptorhynchos gaddisi
Senin, 2026-03-02 20:27:32

contact between the dentary and the mandibular fenestra, and a shallow surangular bone. The analysis did resolve several taxa at the base of caenagnathidae...

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Europelta
Minggu, 2025-09-28 18:33:06

paratype specimen, AR-1/31, consists of a partial jaw with dentary and surangular, an isolated angular, teeth, cervical vertebrae, dorsal vertebrae, dorsosacral...

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Mekosuchus
Senin, 2026-06-01 09:34:07

reduced, being almost closed in M. whitehunterensis, and the angular and surangular bones possess out-turned flanges, both of these are diagnostic for Mekosuchus...

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Bagualia
Sabtu, 2026-06-06 03:33:34

including well-developed alveoli and a prominent coronoid process on the surangular. The teeth are spoon-shaped with heavily wrinkled enamel, displaying asymmetrical...

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Eilenodon
Rabu, 2025-09-24 06:49:57

edge of the tall coronoid process, which attaches to jaw muscles. The surangular bone forms the upper part of the back of the jaw. The rear tip of the...

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Asilisaurus
Senin, 2026-01-12 21:45:00

prong attached to jaw-opening muscles) and a weakly defined ridge on the surangular. The middle portion of the lower jaw is not known, so its overall shape...

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Microleter
Jumat, 2026-03-06 15:07:09

pits, but its teeth are obscured and cannot be properly counted. The surangular possesses a folded ridge on its outer surface, and encompasses the front...

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Eolambia
Selasa, 2025-09-23 02:51:33

on the inner surface of the lower jaw; the absence of the surangular foramen on the surangular; the narrow teeth of the maxilla; the presence of three or...

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Aristonectes
Jumat, 2026-05-22 19:43:11

In A. parvidens, the labial contact between the angular bone and the surangular, anterior to the glenoid fossa, bears a deep cavity which is not present...

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Leninia
Jumat, 2026-03-06 14:59:06

preserved, and this lacks any distinctive features, such as teeth. The surangular fossa is present but extremely reduced, and the angular is well exposed...

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Bayanshiree Formation
Senin, 2026-05-25 11:54:12

hadrosauroid. Hadrosauroidea indet. Indeterminate Shine Us Khuduk "Isolated surangular". A hadrosauroid. Ovaloolithidae indet. Indeterminate Mogoyn Ulagiyn Khaets...

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Duriavenator
Minggu, 2026-05-17 23:41:40

dentaries (the tooth-bearing part of the lower jaw), the fragmentary right surangular (a bone at the back of the lower jaw), fragmentary unidentified elements...

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Brancasaurus
Sabtu, 2025-09-27 22:01:52

relatively low, judging by the narrow and slightly curved top edge of the surangular bone. While the teeth have been lost, they were initially described as...

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Roxochampsa
Senin, 2026-04-20 15:27:59

ends in a nutrient foramen and would have presumably extended onto the surangular, though the bone is missing in the known fossil of Roxochampsa. While...

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Knoetschkesuchus
Rabu, 2025-10-01 06:32:49

margin maintains its height along the angular in K. langenbergensis. The surangular bears a thin, forward-projecting process that, in K. langenbergensis,...

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Thalattoarchon
Minggu, 2026-05-03 13:16:07

in the maxillae would be missing a facing tooth in the mandible. The surangular has a distinct coronoid process located posterior to the eye sockets....

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Penghusuchus
Senin, 2025-10-20 11:18:52

teeth and maxilla is bulges; angular with a mid-dorsal process excluding surangular from posterodorsal border of external mandibular fenestra. Among these...

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Aegirosaurus
Jumat, 2026-03-06 15:23:40

seen on the mandible's outer surface and extend as far forwards as the surangulars, another pair of bones in the same region. Aegirosaurus is estimated...

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Wimanius
Minggu, 2026-05-17 23:53:55

situated on the surangular in front of the jaw joint, the surangulars being long and reinforced rear mandibular bones. The surangulars are upcurved and...

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Caririsuchus
Selasa, 2026-05-19 01:12:32

Itasuchus. The remaining bones of the lower jaw's outer surface; the angular, surangular and articular; have not been described in detail by Kellner beyond contributing...

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Qianshanosuchus
Rabu, 2025-07-02 19:56:10

table. The dorsal edge of the orbits is raised and on the mandible the surangular features a prominent ridge on the lateral side of the bone. Of five premaxillary...

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Xingxiulong
Jumat, 2025-10-03 11:00:37

to Lufengosaurus, Yunnanosaurus, and Jingshanosaurus, the angular and surangular extend much further in front of the mandibular fenestra in Xingxiulong...

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Doswellia
Kamis, 2026-04-23 20:55:49

rows covered the widest part of Doswellia's back. The quadratojugal and surangular bones (on the cranium and lower jaw, respectively) were both incorporated...

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Australothyris
Senin, 2025-03-31 04:17:09

primarily formed by the dentary in its front half, and the low, elongated surangular and angular in its rear half. The coronoid had a low peak and the tall...

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Pannoniasaurus
Sabtu, 2025-10-04 13:16:38

postorbitofrontals, 2 quadrates, 3 dentaries, 3 splenials, 3 angulars, a coronoid, 2 surangulars, an articular, 91 isolated teeth, 20 cervical, 40 dorsal, 4 sacral, and...

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Rautiania
Senin, 2026-04-06 06:19:48

slightly recurved, and largest towards the rear of the premaxilla. The surangular (a bone which forms the upper edge of the rear part of the mandible) had...

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Jiangxisuchus
Rabu, 2026-04-15 00:37:55

corresponding with the upper jaw. The splenial forks at the back, contacting the surangular and angular bones as well as the mandibular fenestra. The dentition of...

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Nyaphulia
Minggu, 2025-10-05 07:35:59

keels, a lateral dentary shelf, and the absence of vertical lamina on the surangular of the lower jaw. At the same time, it differs from Eodicynodon and all...

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Toretocnemus
Sabtu, 2026-05-02 06:21:10

Toretocnemus, with most of the outer surface of the rear part taken up by the surangular. Both the splenials (a pair of inner mandibular bones) and the articulars...

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Citipes
Senin, 2026-01-12 21:48:29

contact between the dentary and the mandibular fenestra, and a shallow surangular bone. The analysis did resolve several taxa at the base of caenagnathidae...

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Krabisuchus
Rabu, 2026-04-15 00:36:29

from coming in contact with the foramen intermandibularis caudalis. The surangular sits above the angular, contributing to the posterior corner of the mandibular...

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