Where: Kostroma, Russian Federation (57.9° N, 43.8° E: paleocoordinates 52.1° N, 44.7° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Cadoceras elatmae ammonoid zone, Early/Lower Callovian (164.7 - 161.2 Ma)

• Chamoussetia subpatruus Subzone

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Reposited in the PIN

Primary reference: V. V. Mitta. 2016. On the phylogeny of early Cardioceratidae (Ammonoidea) and Cadoceratinae from central Russia at the Bathonian–Callovian boundary. Paleontological Journal 50:358-368 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 180997: authorized by Matthew Clapham, entered by Matthew Clapham on 13.08.2016

Creative Commons license: CC BY (attribution)