Petrova Shchel'ya, PIN 4657, Lower Mezen' River (Permian to of Russian Federation)

Where: Arkhangelsk, Russian Federation (65.6° N, 44.6° E: paleocoordinates 34.0° N, 33.4° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Ennatosaurus tecton other zone, Late/Upper Kazanian to Late/Upper Kazanian (272.5 - 265.0 Ma)

• Upper Kazanian substage to lower Tatarian (= Urzhumian); Mezen Assemblage of the Dinocephalian Superassemblage (Golubev 2000)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: macrofossils

Reposited in the PIN

Primary reference: M. F. Ivakhnenko. 2008. Podklass Ophiacomorpha. In M. F. Ivakhnenko and E. N. Kurochkin (eds.), Iskopaemye pozvonotchnye Rossii i sopredel'nykh stran: Iskopaemye reptilii i ptitsy, Tchast' 1 [Fossil vertebrates of Russia and adjacent countries: Fossil reptiles and birds, Part 1], GEOS, Moscow 95-100 [J. Mueller/T. Liebrecht/T. Liebrecht]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 187651: authorized by Richard Butler, entered by Richard Butler on 07.08.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Osteichthyes
 Synapsida - Varanopidae
Mesenosaurus romeri Efremov 1938 synapsid
PIN 4657/2