Tarkhanovskaya Pristan T4, Volga River (Jurassic to of Russian Federation)

Where: Russian Federation (54.6° N, 48.4° E: paleocoordinates 49.3° N, 50.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Kitchini zone, Kimmeridgian to Kimmeridgian (157.3 - 150.8 Ma)

• uppermost Lower Kimmeridgian to lowermost Upper Kimmeridgian

• bed-level stratigraphic resolution

Environment/lithology: lithified claystone

• located at about one hundred meters west of section T1
• calcareous greenish-grey platy clay showing an alteration of light highly bioturbated clay and darker clay

Size class: macrofossils

Primary reference: M. A. Rogov, A. Wierzbowski, and E. Shchepetova. 2017. Ammonite assemblages in the Lower to Upper Kimmeridgian boundary interval (Cymodoce to Mutabilis zones) of Tatarstan (central European Russia) and their correlation importance. Neues Jahrbuch für Geologie und Paläontologie 285(2):161-185 [W. Kiessling/M. Krause/M. Uhen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 191018: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 04.01.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ammonitida - Cardioceratidae
"Amoebites sp." = Amoeboceras (Amoebites)
"Amoebites sp." = Amoeboceras (Amoebites) ammonite
 Ammonitida - Aulacostephanidae
Aulacostephanoides sp. Schindewolf 1925 ammonite
 Ammonitida - Perisphinctidae
 Ammonitida - Aspidoceratidae
Aspidoceras sp. Zittel ammonite