Status of the pachypleurosauroid Psilotrachelosaurus toeplitschi Nopcsa (Reptilia, Sauropterygia), from the Middle Triassic of Austria

Title Variants

Alternative: Psilotrachelosaurus toeplitschi Nopcsa

Related Titles

Series: Fieldiana, Geology, new ser., no. 27

Series: Publication (Field Museum of Natural History), 1448

By

Rieppel, Olivier

Type

Book

Material

Published material

Publication info

[Chicago, Ill.], Field Museum of Natural History, 1993

Notes

"Accepted March 8, 1993. Published July 30, 1993."

The redescription of the holotype and only known specimen of Psilotrachelosaurus toeplitschi Nopcsa, 1928, from the northern Alps of Austria, and its comparison with other pachypleurosauroids show the specimen to represent a distinct genus and species. It is the sister-taxon of the Serpianosaurus-Neusticosaurus clade from the Middle Triassic of Central and Southern Europe (German Lettenkeuper as well as Grenzbitumenzone and Meridekalke of the southern Alps in southern Switzerland and Italy). Psilotrachelosaurus is represented by a subadult (sex y) or a small but already sexually mature (sex x) individual. Diagnostic features of the specimen include body proportions (relatively short humerus as compared to standard length), ossified distal carpal and tarsal 4, and a relatively broad pubis.

Fieldiana series has been published as Geological Series by Field Columbian Museum (1895-1909) and Field Museum of Natural History (1909-1943), and as Fieldiana: Geology by Chicago Natural History Museum (1945-1966) and Field Museum of Natural History (1966-).

Subjects

Austria , Classification , Paleontology , Psilotrachelosaurus toeplitschi , Reptiles, Fossil , Sauropterygia , Triassic

Call Number

QE1 .F4 n.s., no.27

Language

English

Identifiers

DOI: https://doi.org/10.5962/bhl.title.3446
NAL: 500 C432G new ser. no.27
OCLC: 28628424