Tarkhanovskaya Pristan T1, Member 2, Volga River (Jurassic 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, Early/Lower Kimmeridgian (155.7 - 150.8 Ma)

• uppermost Lower Kimmeridgian to lowermost Upper Kimmeridgian

• bed-level stratigraphic resolution

Environment/lithology: lithified mixed carbonate-siliciclastic sediments

• about 1.8 m thick – is composed of calcareous greenish-grey silty clay (22.59-26.67% СаСО3), with numerous thin pyritized ichnofossil tubes with glauconite grains. At the base of the member a thin (up to 0.1 m) band of greenish-grey dark clay (1.04-2.00% С org; 8.29-24.51% СаСО 3) with numerous yellowish bodies of gypsum and iron hydroxides

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 190891: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 20.12.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ammonitida - Cardioceratidae
Amoebites kitchini Salfeld 1915 ammonite
Amoebites cf. kitchini Salfeld 1915 ammonite
 Ammonoidea -