Status of the pachypleurosauroid Psilotrachelosaurus toeplitschi Nopcsa (Reptilia, Sauropterygia), from the Middle Triassic of Austria Psilotrachelosaurus toeplitschi Nopcsa Rieppel, Olivier creator text book [Chicago, Ill.] Field Museum of Natural History 1993 1993
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ENG "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-). Austria Classification Paleontology Psilotrachelosaurus toeplitschi Reptiles, Fossil Sauropterygia Triassic QE1 .F4 n.s., no.27 Fieldiana, Geology, new ser., no. 27 https://www.biodiversitylibrary.org/bibliography/42260 0096-2651 Publication (Field Museum of Natural History), 1448 https://www.biodiversitylibrary.org/bibliography/3446 28628424 10.5962/bhl.title.3446 IBT