Bolgary locality, bed 9, zone (Jurassic of Russian Federation)

Where: Russian Federation (56.0° N, 39.9° E: paleocoordinates 49.6° N, 42.3° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Bauhini zone, Kimmeridgian (157.3 - 152.1 Ma)

Environment/lithology: offshore; claystone

• The clay is gray aleuritic, with numerous pyrite deposits, nests of glauconite and small (up to 5 cm) lenses (70-75 and 125-130 cm below roof) of glauconite sand containing belemnite growths. Ammonites in upper part of the layer

Size class: macrofossils

Primary reference: M. A. Rogov, A. A. Mironenko, A. V. Guzhov, E. M. Tesakova, M. A. Ustinova, Y. A. Shurupova, N. G. Zverkov, M. S. Archangelsky, A. S. Shmakov and E. E. Baraboshkin. 2017. Jurassic deposits of the southern part of the Moscow syneclyse and their fauna. Transactions of the Geological Institute [W. Kiessling/M. Krause/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 190538: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 11.12.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Cardioceratidae
"Amoebites bayi" = Amoeboceras (Amoebites) ammonite
"Amoebites ernesti" = Amoeboceras (Amoebites) ammonite
 Ammonitida - Aulacostephanidae
Vielunia sp. Wierzbowski and Glowniak 2010 ammonite
Pictonia sp. ammonite
 Ammonitida - Perisphinctidae
 Ammonoidea -