Volga River, Krasnovidovo, locality 4919/13 (Permian of Russian Federation)

Where: Tatarstan, Russian Federation (55.4° N, 49.1° E: paleocoordinates 27.1° N, 43.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Podluzhnik Member (Verkhnii Uslon Formation), Roadian (272.3 - 268.8 Ma)

• Base of yellow grainstones.

• group of beds-level stratigraphic resolution

Environment/lithology: lagoonal or restricted shallow subtidal; lithified, ooidal, yellow grainstone

• Yellow cross-bedded grainstone and packstone with abundant oolites

Size class: macrofossils

Preservation: replaced with calcite

Collected by A.V. Mazaev in 2005-2013; reposited in the PIN

Primary reference: A. V. Mazaev. 2015. Upper Kazanian (Middle Permian) gastropods of the Volga–Urals Region. Paleontological Journal 49(8):869-986 [M. Clapham/M. Clapham/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 174706: authorized by Matthew Clapham, entered by Matthew Clapham on 24.11.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

 Trochonematoidea - Lophospiridae
Biarmeaspira jusupovi Mazaev 2015 snail
Biarmeaspira yakowlewi Licharew 1967 snail
Biarmeaspira angulata Netchaev 1894 snail
 Euomphalina - Euomphalidae
Araeonema tenuistriata Netchaev 1894 snail
 Euomphalina - Anomphalidae
Anomphalus barskovi Mazaev 2015 snail
 Euomphalina - Platyceratidae
 Prosobranchia - Meekospiridae
Meekospira symmetrica King 1844 snail
 Prosobranchia - Goniasmatidae
Goniasma multilineata, "Goniasma subangulata" = Goniasma subangulata, "Goniasma golowkinskii" = Goniasma subangulata
Goniasma multilineata Netchaev 1894 snail
"Goniasma subangulata" = Goniasma subangulata de Verneuil 1845 snail
"Goniasma golowkinskii" = Goniasma subangulata de Verneuil 1845 snail
 Prosobranchia - Orthonematidae
Arribazona longispira Mazaev 2015 snail
Arribazona burovi Mazaev 2015 snail
Arribazona lata Netchaev 1894 snail
Arribazona kasanensis Netchaev 1894 snail
"Kazanella volgensis" = Kazankiella volgensis Golowinsky 1868 snail
 Prosobranchia - Pseudozygopleuridae
Levizygopleura elegans Mazaev 2015 snail
 Cerithimorpha - Orthonemidae
"Paleostylus planoverticum" = Palaeostylus planoverticum, Paleostylus krasnovidovoensis n. sp.
"Paleostylus planoverticum" = Palaeostylus planoverticum Netchaev 1894 snail
Paleostylus krasnovidovoensis n. sp. Mazaev 2015 snail
 Heterostropha - Streptacididae
Streptacis subgracilis Netschajew 1894 snail
 Heterostropha - Donaldinidae
Donaldina dubia Mazaev 2015 snail
 Bellerophontida - Bellerophontidae
Retispira chernyshevi Mazaev 2015 snail
 Bellerophontida - Euphemitidae
Warthia fissus Yochelson 1960 snail
 Neritoidea - Naticopsidae
Naticopsis permica Netchaev 1894 snail
 Murchisoniina - Gosseletinidae
Globodoma divesouralica Golovkinski 1868 snail
 Murchisoniina - Soleniscidae
Bulimorpha lavrskyi Mazaev 2015 snail
Soleniscus girtyi Erwin 1988 snail
Strobeus rozeni n. sp. Mazaev 2015 snail
 Pleurotomariida - Phymatopleuridae
Eirlysia globosa n. sp. Mazaev 2015 snail
Eirlysia undata n. sp. Mazaev 2015 snail
Eirlysia nodata Mazaev 2015 snail
Baylea burtasorum Golowkinsky 1868 snail
Baylea subpenea Netchaev 1894 snail
Baylea vjatkensis Mazaev 2015 snail