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Brevicaudosaurus jiyangshanensis
Taxonomy
Brevicaudosaurus jiyangshanensis was named by Shang et al. (2020). Its type specimen is IVPP V 26010, a skeleton, and it is a 3D body fossil. Its type locality is Jiyangshan Quarry, which is in a Ladinian/Carnian marine limestone in China. It is the type species of Brevicaudosaurus.
Entered
by K. Long on 2022-10-08
Synonymy list
| Year | Name and author |
|---|---|
| 2020 | Brevicaudosaurus jiyangshanensis Shang et al. |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Brevicaudosaurus jiyangshanensis Shang et al. 2020
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| Q. Shang et al. 2020 | A small nothosauroid, distinguishable from others by a set of derived characters: trunk with 14 dorsal vertebrae, tail with 30 vertebrae and shorter than skull-neck length; pre-narial region broad; orbit nearly as big as supratemporal fossa; nasal processes of premaxillae very long, extending posteriorly to meet frontals; postfrontal excluded by postorbital-parietal contact from supratemporal fossa; lateral portion of clavicle hypertrophied and heavily pachyostotic, with a pronounced ante rolateral process; humerus with a broadened mid-diaphysis; ulna with a strongly expanded proximal head; seven carpals including a tiny radial sesamoid element; pes with reduced numbers of phalanges (2-3-3-4-2); and the ungual phalanx of each digit dorsoventrally flattened, with a round distal edge. |