DOSEN PROFIL LENGKAP

most ray-finned fish (except some teleosts). The caudal fin is either heterocercal (only fossil taxa) or diphycercal. The coelacanth is one type of living...

often fan-shaped. The tail may be heterocercal, reversed heterocercal, protocercal, diphycercal, or homocercal. Heterocercal: vertebrae extend into the upper...

long-lived, late-maturing fishes with distinctive characteristics, such as a heterocercal caudal fin similar to those of sharks, and an elongated, spindle-like...

Polypteriforms). Additional shared features include spiracles and, in sturgeons, a heterocercal tail (the vertebrae extend into the larger lobe of the caudal fin). However...

flexible. One of the primary characteristics present in most sharks is the heterocercal tail, which aids in locomotion. Chondrichthyans have tooth-like scales...

ctenoid scales Endoskeleton Cartilaginous Mostly bony Caudal fin Heterocercal Heterocercal or diphycercal Pelvic fins Usually posterior. Mostly anterior...

species, due to their evolution in separate environments. Sharks possess a heterocercal caudal fin in which the dorsal portion is usually noticeably larger than...

was a small animal, up to about 60 centimetres (2 ft) long. It had a heterocercal caudal fin, and large spines on two dorsal fins. Unlike other chondrichthyans...

for new territories. Named for their exceptionally long, thresher-like heterocercal tail or caudal fins (which can be as long as the total body length),...

length. It has been referred to as a freshwater shark because of its heterocercal tail or caudal fin resembling that of sharks, though it is not closely...

anal fin. The caudal fin has a larger upper lobe than the lower lobe (heterocercal). Whale sharks have been found to possess dermal denticles on the surface...

are included. The cephalaspidomorphs possessed armored head-shields, a heterocercal tail fin, and in some groups paired pectoral fins. Cephalaspidomorphs...

which provide the main source of thrust for the shark. Most sharks have heterocercal caudal fins, meaning that the backbone extends into the (usually longer)...

fin claspers used in mating, like modern sharks. Hybodonts had a fully heterocercal tail fin, where the upper lobe of the fin was much larger than the lower...

males and 65.6 cm for females. This species is a ground shark and has a heterocercal caudal fin bearing an elongate upper lobe, triangular and broad dorsal...

spots along its back. The caudal fin has asymmetrical lobes, forming a heterocercal tail. The species name acanthias refers to the shark's two spines. These...

below by fins of similar size. In callorhinchids, the tail is instead heterocercal, with a larger upper lobe inclined upwards, similar to many sharks. There...

toward the back of their bodies, and their caudal fins are abbreviate heterocercal, or nonsymmetrical. Alligator gar have gills, but unlike many species...

can be distinguished from sympatric M. canis by the lower lobe on its heterocercal tail fin, which is sharply pointed and posteriorly directed in M. norrisi...

mid-back to the base of the tail. The caudal fin is a single lobe, though heterocercal. They can grow up to 109 cm (43 in) in length, and weigh 9.75 kg (21...

superficial resemblance to a very small porgie, scup, or sea bream, but with a heterocercal tail fin. Bartram, A. W. H. 1977. The Macrosemiidae, a Mesozoic family...

contours of the ventral lobe. Basal species had a rather asymmetric or "heterocercal" tail fin. The asymmetry differed from that of sharks in that the lower...

common to their ancestors, including a modified (rounded externally) heterocercal caudal fin, a highly vascularized gas bladder lung, vestiges of a spiral...

typical characteristics of other sturgeon, such as an elongated body, heterocercal tail, partially cartilaginous skeleton, naked skin and longitudinal series...

morphological features: a spindle-shaped body with smooth, scaleless skin, a heterocercal tail, and small, poorly developed eyes. The earliest known paddlefish...

big upper lobe and a smaller lower lobe. That shape is called heterocercal. Heterocercal tails help create both speed and lift to counteract sinking. The...

similarly elongated jaws filled with long, sharp teeth. Their tails are heterocercal, and the dorsal fins are close to the tail. Gar jaws are elongated and...

the body having a long, unornamented dorsal fin spine, as well as a heterocercal tail fin. Johnson-Ransom, Evan D.; Popov, Evgeny V.; Deméré, Thomas A...

Shared traits such as gilled larvae, ganoid scales, and a modified heterocercal tail suggest a close relationship to multiple extant ancestral groups...

caudal fin variety among Stethacanthus species; while some had low angle heterocercal tails, some had tails approaching homocercal. The broad hypochordal lobe...

body. The caudal fin is elongated with a long upper lobe (i.e. strongly heterocercal). They have two large, broad-based grey dorsal fins set back beyond the...

an anal fin, a pair of pectoral fins, a pair of pelvic fins, and a heterocercal tail. All of these fins help stabilise the shark, but in males, the pelvic...

mostly cartilaginous skeleton in the bowfins. In gars, the tail is still heterocercal but less so than in the chondrosteans. Bowfins have many-rayed dorsal...

evolved after that split. Correspondingly, these fish also have both heterocercal tails and stiff, wing-like pectoral fins which provide the necessary...

of total body length. Its eyes were small and round. The tail fin was heterocercal (spine extending into the upper lobe), with the lower lobe being well...

metres (3.9 ft) long or larger. Bobasatraniiformes have a deepend body, a heterocercal caudal fin, and they often lack pelvic fins (present in Dorypterus, very...

active swimmers, countering earlier hypotheses that the development of a heterocercal tail was necessary for this lifestyle. The Huixingshao Formation preserves...

and were approximately 2.9 cm (1.1 in) in length. The caudal fin was heterocercal, with the upper lobe longer than the lower lobe. There is no evidence...

peduncle. The scales are small, rhombic and lack a ganoine layer. The heterocercal tail fin is large and deeply forked. The dorsal and anal fins are situated...

dorsal fins, a set of three anal fins (5 in total) and a long tapering Heterocercal caudal fin. Bandringa had a long rostrum and may have been analogous...

Kenshu Shimada; Cynthia K. Rigsby (2013). "Anatomy and Evolution of Heterocercal Tail in Lamniform Sharks". The Anatomical Record. 296 (3): 433–442. doi:10...

first dorsal fin with a spine, paired pectoral and pelvic fins, and heterocercal caudal fins. The bodies of debeeriids were completely scaleless, and...

one very small inner cusp. The animal had an elongated body, a forked, heterocercal tail fin, and a covering of dermal denticles. It had a single dorsal...

exceeding 40 kg (88 lb). Like other sturgeons it has an elongated body, heterocercal tail, partially cartilaginous skeleton, naked skin and longitudinal series...

which is located closer to the head. Like all shark species, they have heterocercal caudal fins, where the upper part is longer than the lower. E. schultzi...

including the position of its two large spines and the presence of a heterocercal tail. In addition to this type specimen, a second potential specimen...

and anal fins were virtually opposed to each other. The caudal fin was heterocercal. Pteronisculus had a wide geographic range during the Early Triassic...

thin rays called ceratotrichia. The caudal fin of many holocephalans is heterocercal with a long upper lobe, although in some groups it is leptocercal (also...

and its eyes were located in the front of the skull. Acrolepis had a heterocercal tail fin and fusiform body. The body was covered in thick ganoid scales...

are much smaller than the pectoral fins. The forked caudal fin is hemi-heterocercal due to a heavy lobe extending into the dorsal lobe of the fin, but outwardly...

the pectoral fins were slightly larger. The caudal fin was slightly heterocercal, while there was a single branchiostegal reduced to a plate-shaped bone...

the fin by about four blocks of calcified cartilage. The caudal fin is heterocercal, but approaches a functional homocercal condition. Most Stethacanthids...

dorsal fins, an anal fin, pectoral fins, pelvic fins, and most of the heterocercal caudal fin. Both dorsal fins were proportionally large, as were the broad...

these and the hypercercal and much larger hypocercal lobes forming a heterocercal tail resemble features of modern fish that are associated with their...

fins as hydrofoils while their bodies remain horizontal. In sharks, the heterocercal tail shape drives water downward, creating a counteracting upward force...

posterior parts of its body. The caudal fin is partially between the heterocercal condition of Dipterus and the diphycercal shape of Sirenidae. The rays...

are similar in color. Like the shovelnose sturgeon, their tails are heterocercal, with the top tail fin being longer than the bottom fin, though this...

117-148. Crofts S. B., Shehata R. and Flammang B. E. 2019. Flexibility of Heterocercal Tails: What Can the Functional Morphology of Shark Tails Tell Us about...

articulation, and the arrangement and structure of the fins, including the heterocercal caudal fin. However, these features are plesiomorphic for actinopterygians...

just at the base of the caudal (tail) fin. The caudal fin itself is heterocercal, meaning the vertebral column extends into the upper lobe and consists...

specimen, Bindellini and colleagues predicted that it would have been heterocercal, with a much smaller upper lobe than lower. While this shape of tail...

fins, 2 rounded pectoral fins, 2 pelvic fins, an anal fin, and a long heterocercal caudal fin. It can get up to 1.5 feet in size with its tail taking up...

Like many antiarchs, B. canadensis also had narrow pectoral fins, a heterocercal caudal fin (meaning the notochord extends into the upper lobe of the...

(or upper lip) to the most posterior point of the opercular margin. heterocercal (of a fin) Not symmetric, e.g. in sharks. homocercal (of a fin) Symmetric...

anal fin which length is half of the dorsal fin, and deeply notched heterocercal caudal fin. Its body is covered by moderately sized cycloid scales. Its...

relatively large eyes with a long snout and an inferior mouth. It has a heterocercal-shaped caudal fin with a black edge (or margin) that traces the shape...

works have identified two dorsal fins, pectoral and pelvic fins, and a heterocercal caudal fin. Teeth were present in rows both inside the jaws and on the...

and pelvic fins arising from fleshy lobes. The caudal (tail) fin was heterocercal, with a long low upper (epichordal) blade and a rounded lower (hypochordal)...

M. schmitti also has pectoral fins, pelvic fins, an anal fin, and a heterocercal caudal fin (the top caudal fin lobe is larger than the bottom lobe)....

approximately a third of the way from the tail end. The tail fin is heterocercal with the lower lobe being slightly longer with larger rays. It has no...

PMID 30836867. S. B. Crofts; R. Shehata; B. Flammang (2019). "Flexibility of heterocercal tails: what can the functional morphology of shark tails tell us about...

sizeable, with a large terminal mouth and numerous teeth. The tail was heterocercal. The remaining fins with the exception of the pectoral fins were situated...

fins, triangular pectoral fins, paired pelvic fins, an anal fin, and a heterocercal caudal fin. The second dorsal has a dark to black tip and all other fins...

offshoot of ancestral chondrosteans, retaining such ancestral features as a heterocercal tail, fin structure, jaw structure, and spiracle. They have replaced...

hints at their preferred method of hunting. This species' ancestral heterocercal caudal tail has a longer upper lobe with shortened lower lobe. A quality...

PMID 30836867. S. B. Crofts; R. Shehata; B. Flammang (2019). "Flexibility of heterocercal tails: what can the functional morphology of shark tails tell us about...