Search Results: Autapomorphic

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Autapomorphy
Selasa, 2026-05-19 07:47:35

taxon presents an autapomorphy with respect to its absence of legs. The autapomorphic species concept is one of many methods that scientists might use to...

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Latenivenatrix
Senin, 2026-03-16 14:38:13

distinguishable from other troodontids thanks to the following diagnostic (autapomorphic) traits residing in the pelvis: the pubis is retroverted forming a 17°...

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Oxpecker
Senin, 2026-05-18 19:06:17

that such remnants of past evolution can possess striking and unique autapomorphic adaptations. The genus contains two species: The oxpeckers are endemic...

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Occipital bun
Sabtu, 2026-02-14 00:05:45

Vasudha (2023). "Torus occipitale and occipital bun - Case series of autapomorphic traits". MRIMS Journal of Health Sciences. 11 (1): 102–105. doi:10.4103/mjhs...

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Digit (anatomy)
Minggu, 2026-04-12 23:04:39

to say whether this character distribution implies that Tiktaalik is autapomorphic, that Panderichthys and tetrapods are convergent, or that Panderichthys...

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Ceprano Man
Rabu, 2026-03-18 03:58:46

of [H. heidelbergensis] . . . preceding the appearance of regional autapomorphic features." They suggested that the specimen could be "an appropriate...

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Heliotropium
Minggu, 2026-03-08 07:26:50

their New World counterparts. Researchers concluded this is a single autapomorphic character from a single deletion event in the past. This most reasonably...

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Archaeotrogonidae
Rabu, 2025-10-15 01:10:54

cypselomorph families were already distinct, yet appears as well highly autapomorphic and the archaeotrogonid lineage seems to go as far back as that of nightjars...

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Airbreathing catfish
Senin, 2026-05-18 07:21:22

presence of four barbels, long dorsal and anal fins, and especially by the autapomorphic presence of a suprabranchial organ, formed by tree-like structures from...

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Nicobar pigeon
Selasa, 2026-06-02 17:22:31

the clade. C. nicobarica is a quite singular columbiform (though less autapomorphic than the flightless Raphinae), as are for example the tooth-billed pigeon...

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Orobates
Kamis, 2026-01-15 02:53:36

found in Germany. A combination of primitive and derived traits (i.e. autapomorphic and plesiomorphic) distinguish it from all other well-known members...

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Aplestosuchus
Rabu, 2025-10-01 03:42:03

including four autapomorphies. It possesses an autapomorphic nasal bone with dorsal midline crest, and an autapomorphic frontal longitudinal ridge that reaches...

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Metallyticus
Selasa, 2026-05-26 00:58:06

extant species to be misleading. Metallyticidae species have several autapomorphic traits, including their metallic coloration and the enlarged spine on...

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Tiktaalik
Senin, 2026-06-01 20:53:01

to say whether this character distribution implies that Tiktaalik is autapomorphic, that Panderichthys and tetrapods are convergent, or that Panderichthys...

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Nochnitsa
Selasa, 2026-05-05 18:29:06

group. The specific name, meaning "twin tooth", alludes to its paired autapomorphic postcanine teeth. The holotype specimen consists of a near complete...

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Spectacled warbler
Minggu, 2026-04-05 16:43:16

certainty. It seems as if its intermediate appearance, apart from the autapomorphic white eye ring, indicates its relationships reasonably well. At least...

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Thumb
Jumat, 2026-04-10 22:30:59

unique in the musculature of their forearm and hand. Yet, they remain autapomorphic, meaning each muscle is found in one or more non-human primates. The...

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Blackbuck
Sabtu, 2026-05-23 22:40:32

Gazella. This was attributed to a history of rapid evolution of an autapomorphic phenotype of Antilope. This might have been aided by a particularly...

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Living fossil
Senin, 2026-05-18 07:17:52

regarded as living fossils. See for example the uniquely and highly autapomorphic oxpeckers, which appear to be the only survivors of an ancient lineage...

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Urkuphryne
Senin, 2026-03-30 03:57:00

taxon to the smaller Phyllonastes within the subfamily Holoadeninae. Autapomorphic characters of this taxon include reduced distal expansions of the fingers...

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Nyasasaurus
Sabtu, 2025-11-01 02:04:36

found the specimen to not be diagnostic because it does not have any autapomorphic features or a unique combination of characteristics. Therefore, they...

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Inostrancevia
Minggu, 2026-05-17 22:34:53

phalanges have an acute triangular shape. Inostrancevia has the most autapomorphic postcranial skeleton identified on a gorgonopsian. The scapula of this...

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Daspletosaurus
Senin, 2026-05-25 11:22:49

may be a junior synonym of D. torosus, since there is a near lack of autapomorphic characters that can differentiate this species. They also claimed that...

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Oxalaia
Rabu, 2026-04-01 12:45:56

colleagues differentiated Oxalaia from it and other spinosaurids by its autapomorphic (distinguishing) craniodental features, like its sculptured palatal...

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

bone, lacking the anterior hook of diplodocoids, but with potentially autapomorphic grooves surrounding the obturator foramen. Articulation with the ischium...

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Arganaceras
Kamis, 2026-05-14 00:01:43

described as a large pareiasaur, distinguished from its relatives by eleven autapomorphic features. It possessed horn-like protuberances on the squamosal and...

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Achlyodidini
Minggu, 2026-03-22 16:45:47

sensu lato – the Carcharodini and Erynnini – are not as strikingly autapomorphic as the Achlyodidini, but they are more distant relatives of the Pyrgini...

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Lagerpeton
Senin, 2025-09-29 07:59:28

such as Silesaurus, and basal saurischians like Eoraptor. Twenty one autapomorphic characters have been identified in L. chanarensis, these include: the...

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Scythris
Selasa, 2026-05-19 00:13:47

which are neither clearly assignable to any one species group, nor autapomorphic enough to be included in a monospecific "group". These include: AEBR...

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Pilmatueia
Senin, 2026-04-20 15:30:15

and not a pneumatic structure. The anterior dorsal vertebrae show an autapomorphic ridge on the anterior centrodiapophyseal lamina. Even the posterior...

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Aha (wasp)
Selasa, 2025-10-14 00:45:25

miles (6.4 km) south of Sherlock, South Australia. Lomholdt listed six autapomorphic features of the genus. Both sexes have outer claws which are much bigger...

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

length and 10 kg (22 lb) in body mass. It can be distinguished by four autapomorphic, unique derived traits: the presence of an evident groove between the...

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Antarctosuchus
Rabu, 2026-05-06 11:01:21

suggests specialization on small prey, possibly invertebrates. Other autapomorphic features of this taxon are a parachoanal tooth row that extends far...

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Palmar interossei muscles
Jumat, 2026-05-15 05:53:53

interosseous muscle (PPIM) is absent in non-human primates, and is probably an autapomorphic muscle unique to the human thumb (together with flexor pollicis longus)...

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List of vertebrate fauna of the Maastrichtian stage
Kamis, 2026-05-21 16:23:06

tubercles on the maxilla and on the premaxilla. Caryonosuchus also has autapomorphic rough ornamentation with grooves and bony ridges on its rostrum. †Chenanisuchus...

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Metallyticus splendidus
Selasa, 2026-04-21 04:39:59

genus. Other traits of M. splendidus and other Metallyticus species are autapomorphic, including the metallic coloration and large outer spine on the front...

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Stratesaurus
Senin, 2026-01-26 01:49:35

prezygapophyses, an autapomorphy (unique derived feature) of the genus. Also autapomorphic are the short lengths of the centra (vertebral bodies) in the shoulder...

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Daspletosaurini
Jumat, 2025-11-28 04:46:07

may be a junior synonym of D. torosus, since there is a near lack of autapomorphic characters that can differentiate this species. They also claimed that...

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Berberomeloe
Jumat, 2024-04-05 21:37:18

fit into any other genus of Lyttini, having a unique combination of autapomorphic characters, namely reduced elytra, no wings and modified antennae, so...

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Lufeng Formation
Sabtu, 2026-05-09 02:10:50

Partial skulls and jaws. The three named species do not display any autapomorphic characters and should be considered indeterminate within the genus....

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Barasaurus
Senin, 2025-03-31 04:16:18

relatively short pedal unguals, and therefore these represent two additional autapomorphic reversals of Barasaurus. Although the complete pedal phalangeal count...

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Huinculsaurus
Senin, 2026-02-23 13:58:42

Huinculsaurus is distinguished from all other theropods by several autapomorphic features of the vertebrae including elongated articular facets on the...

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Rosy-billed pochard
Selasa, 2026-01-06 23:42:07

Viellot, in Paraguay and Buenos Aires, Argentina. The species is highly autapomorphic and is placed in a sister-group with the southern pochard, but evidence...

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

configuration seen in the temporal region of confuciusornithids was autapomorphic (a unique trait that evolved secondarily rather than having been retained...

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Iowagnathus
Senin, 2025-07-28 11:50:31

placement within conodonta has not yet been fully resolved, due to the autapomorphic nature of its elements, the oral structure of this species bears some...

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Radiodactylus
Sabtu, 2026-02-07 01:43:50

distal portion of the humerus. This large-sized pterosaur also has autapomorphic square distal humerus cross section, and a straight vertical groove...

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Alamodactylus
Minggu, 2025-10-12 07:10:32

distal humerus cross-section. This medium-sized pterosaur also has autapomorphic small pneumatic foramen on ventral surface of humerus proximal end,...

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Nesorhinus
Rabu, 2026-04-29 17:35:04

200–2,612 lb) estimated for N. philippinensis. N. hayasakai has three autapomorphic features, all of which are present on the teeth - presence of crochet...

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Timeline of fish evolution
Senin, 2026-05-18 09:29:15

to say whether this character distribution implies that Tiktaalik is autapomorphic, that Panderichthys and tetrapods are convergent, or that Panderichthys...

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Pellegrinisaurus
Minggu, 2025-10-05 00:06:49

incomplete right femur, twenty-six caudal and four dorsal vertebrae. Autapomorphic features of Pellegrinisaurus, by which it can be distinguished, are:...

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Albertavenator
Senin, 2026-05-18 10:25:07

process of the parietal, and a truncated supraciliary foramen. These autapomorphic features distinguish Albertavenator from other troodontids such as Troodon...

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Caryonosuchus
Minggu, 2025-03-30 03:11:01

tubercles on the maxilla and on the premaxilla. Caryonosuchus also has autapomorphic rough ornamentation with grooves and bony ridges on its rostrum. DGM 1411-R...

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Salticoida
Senin, 2026-05-18 21:31:23

mimics whose relationships are entirely obscure; they are so highly autapomorphic it is hard to tell if they are truly ancient among the salticoids, or...

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Stomiiformes
Senin, 2026-05-18 07:19:02

Sternoptychidae and the Stomiidae, respectively. These two, in turn, are highly autapomorphic, and at a casual glance do not look as if they were as closely related...

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Prosqualodon
Senin, 2026-01-12 11:27:35

its prey. The species Prosqualodon australis is distinguished by the autapomorphic feature that is its triangular parafalciform fossa. Prosqualodon australis...

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Arcovenator
Selasa, 2026-05-19 02:00:20

bone linking its ventral and posterior processes. It has, in a similar autapomorphic fashion, a thick, rough-surfaced process dorsal to the eye socket that...

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Polyodontosaurus
Jumat, 2025-11-28 04:49:07

holotype, and that the dentaries of troodontids to not bear unique, autapomorphic features, Polyodontosaurus was a nomen dubium, and could not be considered...

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Stenopterygii
Rabu, 2025-05-07 04:58:01

large group of closely related Teleostei, a mere two rather peculiarly autapomorphic orders at best. In some treatments, it is even monotypic. As originally...

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Carnufex
Minggu, 2026-01-04 06:28:18

distant ancestors, reptiles like Postosuchus. However, it is also highly autapomorphic, meaning that it possessed many other features which are completely...

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Haploblepharus
Minggu, 2026-05-17 22:49:13

genus Halaelurus, which is inconsistent with the presence of three autapomorphic traits in Haploblepharus that are not shared by either Halaelurus or...

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Seguenzioidea
Kamis, 2026-05-21 11:30:41

Siliquariidae and Turridae. Therefore, this characteristic is to be considered autapomorphic. a unique radular formula with an underlying rhipidoglossate ground...

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Laosuchus
Selasa, 2026-01-06 10:38:49

from the pterygoid, contacting the maxilla. CT-scanning revealed an autapomorphic internal crest on the dorsal palate that follows the internal margin...

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Paludititan
Kamis, 2025-10-02 19:39:57

was described, the paleontologists are believed that this feature is autapomorphic for Paludititan, however, some vertebrae found in 2019 in the vicinity...

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Palaelodus
Senin, 2026-05-18 07:37:47

the skulls of modern grebes of the order Podicipediformes. Among its autapomorphic traits is the position and development of the fossae glandulae nasales...

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Trolicaphyllium
Rabu, 2026-06-03 01:33:16

between the compound eyes, which are absent in males of Chitoniscus. The autapomorphic characteristics of the genus include the comb-like projections of the...

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

bone. The ulna is similar and has a large olecranon process and an autapomorphic broad groove running down along its outer edge. The hand is poorly known...

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Coxoplectoptera
Senin, 2026-05-18 04:05:36

Protereisma. The monophyly of Coxoplectoptera is demonstrated by several autapomorphic characters in the adult stage, such as the raptorial forelegs and single-segmented...

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Kempfidris
Selasa, 2026-06-02 03:09:26

anteromedian portion of abdominal tergum VII. This last trait appears to be autapomorphic for the genus. Queens and males are unknown. The most outstanding feature...

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Banksia coccinea
Kamis, 2026-05-21 08:37:46

arrangement. They were uncertain of B. coccinea's placement as it had highly autapomorphic characteristics, which made analysis of its relationships difficult...

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

are visible, which Bindellini and colleagues considered potentially autapomorphic of the genus. The jugals are thin, strip-like bones bent at right angles...

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Lusonectes
Senin, 2026-05-25 11:04:44

posterior interpterygoid vacuities are long. This feature is considered autapomorphic for the genus. The basisphenoid is unkeeled and forms much of the medial...

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Acentetaphyllium
Senin, 2026-05-18 03:55:58

uniformly spatulate or strongly wavy, as in Acentetaphyllium larssoni. The autapomorphic characteristics of the genus are considered to be the strongly sclerotised...

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

noticeably elongate along the axis of the length of the jaw, a unique (autapomorphic) characteristic of this genus. Newtonsaurus probably originates from...

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Rhadinosuchus
Minggu, 2025-03-30 03:00:25

transition on the snout. The front tip of the jaw has a large pit, which is autapomorphic (unique) to Rhadinosuchus compared to other archosauriforms. In addition...

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Amblysomus
Senin, 2024-03-04 06:58:50

the Miocene). Chrysochlorids have been described as "spectacularly autapomorphic" due to how unusual and numerous they are. They are blind, subterranean...

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Rakaphyllium
Senin, 2026-05-18 03:54:30

to strongly undulating, giving the abdomen a lobed appearance. The autapomorphic characteristics of this genus are the exceptionally long gonapophyses...

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List of fossil bird genera
Senin, 2026-05-18 20:21:07

cannot be placed in relation to any one modern group and are neither autapomorphic enough to assign them to own orders. Especially the Late Cretaceous/early...

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Banksia aquilonia
Kamis, 2026-05-21 09:05:07

differentiated geographic forms within which is nested at least one divergent, autapomorphic taxon that invites treatment as a species." George promoted it to species...

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Parahelicoprion
Selasa, 2026-05-12 09:39:00

description of P. mariosuarezi that the genus Parahelicoprion may lack autapomorphic (derived) characteristics, which puts its status as a monophyletic group...

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Wannia
Senin, 2025-03-31 04:25:30

nasals just posterior to the nares are not swollen in contrast to the autapomorphic condition seen in the latter. However, a further preparation of TTU...

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Brasidas (insect)
Rabu, 2025-11-12 23:38:22

Euobrimus, whose type species Euobrimus atherura was established. A common autapomorphic feature of both genera are the metasternal holes, which, according to...

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Acamptonectes
Selasa, 2026-05-19 01:19:45

several other ophthalmosaurids. The centra of the dorsal vertebrae were autapomorphic, being tightly interlocking and having extensive posterolateral lamellae...

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Concornis
Rabu, 2026-02-25 00:47:57

Sinornis and Cathayornis has been suggested mainly based on a peculiarly autapomorphic sternum. There is a keel that is Y-shaped and small compared to that...

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Nankangia
Senin, 2025-09-29 07:25:13

oviraptorosaurians based on a combination of traits, some of which are autapomorphic (i.e. unique). On the ventral surface near the base of the transverse...

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Great Oʻahu crake
Sabtu, 2025-06-14 21:37:38

of this group, the Chatham rail with its diminished size and highly autapomorphic morphological adaptations, which until the late 19th century was found...

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Branchiosauridae
Minggu, 2025-04-27 20:36:22

amphibians. However, Boy (1972) rejected this hypothesis by recognizing autapomorphic larval features of branchiosaurids distinguishing them from other temnospondyls...

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Kundurosaurus
Minggu, 2025-09-28 17:13:00

girdle of Kundurosaurus: left pubis AENM 2/922-5L (A), left ischium AENM 2/922-3L (B) and the autapomorphic left ilium AENM 2/922-7L (C) in lateral view....

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Gallornis
Senin, 2026-05-18 07:56:28

somewhat recurved over it. The elevated lateral trochanteric crest is an autapomorphic feature of and plesiomorphic among Neornithes, as far as is known. It...

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Pyralinae
Selasa, 2026-05-19 03:57:13

advanced snout moths, a lineage which otherwise includes the even more autapomorphic subfamilies Epipaschiinae and Phycitinae. Even though the Pyralinae...

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Cryptophyllium
Senin, 2026-05-18 03:01:32

also occur in other genera of the Phyllidae, but do not represent autapomorphic traits of the genus. Both sexes always possess inner lobes (protibial...

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Stenokranio
Sabtu, 2026-03-14 16:34:58

Germany. The type and only species, S. boldi, is diagnosed by three autapomorphic features of the skull that differentiate it from all other eryopids:...

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Kawanectes
Senin, 2026-04-20 10:58:54

unknown due to the incompleteness of the specimens. A combination of autapomorphic traits can be used to distinguish Kawanectes from all other elasmosaurids:...

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Azelinini
Jumat, 2026-05-15 19:34:27

the hindleg tibiae. The male genital's valvae usually have complex autapomorphic modifications (such as a hypertrophied ampulla and gnathos) in this...

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Qianxisaurus
Kamis, 2025-07-03 04:19:47

only slightly larger than the foramen of the parietal bone. These autapomorphic traits are unique to Qianxisaurus among all known eosauropterygians...

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Vaabonbonphyllium
Senin, 2026-05-18 03:56:02

certain longitudinal veins of the forewings (tegmina) are considered as autapomorphic characteristics of the genus. In females, the first radial vein (R1)...

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Eucamerotus
Sabtu, 2026-02-21 22:00:50

likely is not. While historically regarded as dubious due to a lack of autapomorphic (distinguishing) traits, the 2011 work by Upchurch, Mannion, and Barrett...

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

Heterodontosaurus specimens. Its orientation, not presence, is now considered autapomorphic for Manidens. The postorbital process of the jugal, initially described...

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Heteropterygidae
Selasa, 2026-05-19 02:44:05

to 3.7 centimetres (0.98 to 1.46 in) long Haaniella parva. A common autapomorphic characteristic of the Heteropterygidae is the presence of sensory areas...

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Oriental Basin pocket gopher
Minggu, 2025-12-21 19:03:15

2n=40 and its fundamental number is FN=72. C. fulvescens contains an autapomorphic allele for the gene RAG1 distinguishing it from C. perotensis and C...

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Lectavis
Minggu, 2026-05-10 17:53:45

of 1.15 kg (2.5 lb). It possesses a hypotarsus, which it evolved autapomorphically from modern birds, as it covers the upper end of the second, not the...

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Theramenes (insect)
Minggu, 2026-05-03 16:52:03

lengths of 31 to 58 millimetres (1.2 to 2.3 in). Characteristic and thus autapomorphic are their mostly pronounced hump-like elevations on the rear meso- and...

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Hoploclonia
Minggu, 2026-05-03 16:48:59

Obrimini, but from the tenth tergum. This characteristic is considered autapomorphic for the tribe Hoplocloniini. The nocturnal insects hide on the ground...

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Heteropterygini
Minggu, 2025-05-25 09:16:40

Heteropteryx. The latter appears more likely due to the lack of larger autapomorphic differences. Valid species are: Haaniella Kirby, 1904 (syn. = Heteropteryx...

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Arthropterygius
Senin, 2026-05-25 11:52:39

rest of the bone, and does not bear any distinct articular facets. Autapomorphically, the top end of the ilium is 1.5 times the width of the acetabular...

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Keilhauia
Minggu, 2025-09-28 09:54:47

rest of the bone, and does not bear any distinct articular facets. Autapomorphically, the top end of the ilium is 1.5 times the width of the acetabular...

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Datamini
Senin, 2026-05-18 04:07:36

5 cm. The presence of sensory areas, which is considered to be the autapomorphic characteristic of the Heteropterygidae, is fully developed in the Dataminae...

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Theritas
Senin, 2026-05-18 21:53:28

the hindwing upperside near the base of the cubital vein; these are autapomorphically tucked away in a flat deep pouch in space 1b between the wing veins...

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