Ples River near Kineshma (Vetlugian Series) (Triassic of Russian Federation)

Also known as Vetluga, Pless, left bank of the Volga, Zone V, Upper Volga

Where: Ivanovo, Russian Federation (57.4° N, 41.5° E: paleocoordinates 30.9° N, 34.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Zone V zone, Vetlugian Series Formation, Early/Lower Triassic (252.2 - 247.2 Ma)

• Vetlugian Series (Lozovsky 1993), Volga Basin

• formation-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Primary reference: J. A. Efremov. 1940. Predvaritel'noye opisaniye novykh form permskoy i triasovoy fauny nazemnykh pozvonochnykh SSSR [Preliminary description of new forms from the Permian and Triassic terrestrial vertebrate fauna of the USSR]. Trudy Paleontologicheskogo Instituta Akademiy Nauk SSSR 10(2):1-140 [J. Alroy/R. Whatley/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 28467: authorized by John Alroy, entered by Robin Whatley on 14.02.2003, edited by Bethany Allen

Creative Commons license: CC BY (attribution)

Taxonomic list

• Besides Volgosuchus cornutus gen. et. sp. nov., several other previously described specimens have been reassigned. New names are entered and previous are in comments field. Thecodontosaurus reported to be present in the "localities of the rivers Sharjenga, Vetluga, Jug and Luza." Also "scales of Ganoid fishes (Acrolepis) and the shells of Estheria."
Amphibia
 Temnospondyli - Benthosuchidae
Volgosuchus cornutus n. gen. n. sp. Efremov 1940 tetrapod
group = Neorhachitomi, family = Benthosuchidae
Angusaurus weidenbaumi n. sp. Kuzmin 1935 tetrapod
 Temnospondyli -
"Lyrocephalus acutirostris n. sp." = Thoosuchus acutirostris
"Lyrocephalus acutirostris n. sp." = Thoosuchus acutirostris Hartmann-Weinberg and Kuzmin 1936 tetrapod