Protanystropheus

{{Short description|Extinct genus of reptiles}}

{{Automatic taxobox

| fossil_range = Middle Triassic, {{fossil_range|245|237}}

| taxon = Protanystropheus

| display_parents=2

| authority = Sennikov, 2011

| type_species = {{extinct}}Protanystropheus antiquus

| type_species_authority = (Huene, 1908)
[originally Tanystropheus antiquus]

| synonyms =

?Thecodontosaurus primus Huene, 1908

}}

Protanystropheus is an extinct genus of archosauromorph from the Middle Triassic (Anisian stage) of Poland, Germany, Austria and the Netherlands. It was named by Sennikov in 2011 and the type species is Protanystropheus antiquus, first described in 1908 by German paleontologist Friedrich von Huene under the name Tanystropheus antiquus{{Cite journal|author=Sennikov, A. G. |year=2011 |title=New tanystropheids (Reptilia: Archosauromorpha) from the Triassic of Europe |journal=Paleontological Journal |volume=45 |issue=1 |pages=90–104 |doi=10.1134/S0031030111010151 |bibcode=2011PalJ...45...90S |s2cid=85193597 }} (some authors still prefer to include this species within Tanystropheus{{cite journal |author1=Skawiński, T. |author2=Ziegler, M. |author3=Czepiński, Ł. |author4=Szermański, M. |author5=Tałanda, M. |author6=Surmik, D. |author7=Niedźwiedzki, G. |year=2017 |title=A re-evaluation of the historical 'dinosaur' remains from the Middle-Upper Triassic of Poland |journal=Historical Biology |volume=27 |issue=4 |pages=442–472 |doi=10.1080/08912963.2016.1188385|bibcode=2017HBio...29..442S |s2cid=133166493 }}{{cite conference |url=https://docs.wixstatic.com/ugd/4abdcf_6d667de7460e4a489c8a49a9760414b9.pdf#page=111 |title=Revision of Tanystropheus taxonomy |author1=Spiekman, S. N. F. |author2=Scheyer, T. M. |date=2019 |pages=111 |location=Brussels |conference=XVII Conference of the European Association of Vertebrate Palaeontologists, 2–6 July 2019}}). Sennikov (2011) referred to Protanystropheus several vertebrae, including those belonging to "Thecodontosaurus" primus, but such a referral has later been questioned, because these specimens may represent other basal archosauromorphs.

File:Protanystropheus Size Comparison.svg