Protanystropheus

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^[1] (some authors still prefer to include this species within Tanystropheus^[2][3]). Sennikov (2011) referred to Protanystropheus several vertebrae, including those belonging to "Thecodontosaurus" primus,^[1] but such a referral has later been questioned, because these specimens may represent other basal archosauromorphs.^[2]

Size compared to a human

Protanystropheus Temporal range: Middle Triassic, 245–237 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Clade:	Archosauromorpha
Clade:	†Tanysauria
Family:	†Trachelosauridae
Genus:	†Protanystropheus Sennikov, 2011
Type species
†Protanystropheus antiquus (Huene, 1908) [originally Tanystropheus antiquus]
Synonyms
?Thecodontosaurus primus Huene, 1908