80km west of Aktybinsk (=Aktobe) (Jurassic to of Kazakhstan)

Where: Kazakhstan (50.3° N, 56.1° E: paleocoordinates 46.4° N, 58.3° E)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Middle Callovian to Middle Callovian (164.7 - 157.3 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, calcareous sandstone

Size classes: macrofossils, mesofossils

Collected by T.N. Smirnova, V.N. Ben'yamovskiy, T.R. Akopov

• Repository: M.V. Lomonosov University of Moscow (MU) Collection No. 139

Primary reference: T. N. Smirnova. 1992. Late Mesozoic Brachiopods of the Caspian Depression and the Russian Platform. Paleontological Journal 26(1):25-35 [M. Clapham/M. Manojlovic]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 154603: authorized by Matthew Clapham, entered by Marko Manojlovic on 24.02.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Rhynchonellata
 Rhynchonellida - Cyclothyrididae
Praecyclothyris derupta n. sp.
Praecyclothyris derupta n. sp. Smirnova 1992
partly preserved shells
 Rhynchonellida - Rhynchonellidae
Minutulirhynchia triangularis n. sp., Sulciphoria acutimarginata n. sp.
Minutulirhynchia triangularis n. sp. Smirnova 1992
partly, more rarely fully, preserved shells
Sulciphoria acutimarginata n. sp. Smirnova 1992
variously preserved, mostly complete shells