Tolya River, eastern Prepolar Urals (Jurassic of Russian Federation)

Where: Khanty-Mansi Autonomous Okrug, Russian Federation (63.2° N, 60.1° E: paleocoordinates 59.3° N, 56.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Ringsteadia pseudocordata ammonoid zone, Late/Upper Oxfordian (161.2 - 155.7 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Primary reference: M. S. Mesezhnikov. 1984. Kimeridzhskiy i Volzhskiy Yarusy Severa SSSR 1-224 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 164305: authorized by Matthew Clapham, entered by Matthew Clapham on 28.11.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Aulacostephanidae
Ringsteadia marstonensis Salfeld 1917 ammonite