Upper Volga River Region and along the banks of the Unzha River (Jurassic of Russian Federation)

Where: Russian Federation (57.0° N, 43.0° E)

• Paleocoordinates: 46.9° N, 48.7° E (Wright 2013)

• coordinate estimated from map

• basin-level geographic resolution

When: Early/Lower Callovian (165.3 - 161.5 Ma)

• Russian Plain, strata of the calloviense Zone

• group of beds-level stratigraphic resolution

Environment/lithology: marine; micaceous sandstone and claystone

Size class: macrofossils

Primary reference: D. N. Kiselev. 1997. A new species of the genus Cadoceras (Ammonoidea) from the Callovian of the Unzha River. Paleontological Journal 31(6):583-587 [M. Aberhan/S. Nurnberg/S. Nurnberg]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 38837: authorized by Martin Aberhan, entered by Sabine Nürnberg on 09.05.2004

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Govericeras goverianum, Toricellicetes ex gr. approximatus, ? Guliemites aff. corticornutus
Cephalopoda
 Ammonitida - Perisphinctidae
Proplanulites aff. subcuneiformis
 Ammonitida - Kosmoceratidae
Kepplerites cf. crucifer, Kepplerites curtilobus, Kepplerites cf. trichophorus
 Ammonitida - Cardioceratidae
Cadoceras (Bryocadoceras) sokolovi n. sp., "Pseudocadoceras (Pseudocadoceras) tsytovichae" = Cadoceras (Pseudocadoceras), "Pseudocadoceras (Costacadoceras) sp." = Cadoceras (Pseudocadoceras), Pseudocadoceras (Pseudocadoceras) boreale, Chamoussetia cf. buckmani, Chamoussetia phillipsi
Cadoceras (Bryocadoceras) sokolovi n. sp. Kiselev 1997 ammonite
"Pseudocadoceras (Pseudocadoceras) tsytovichae" = Cadoceras (Pseudocadoceras) ammonite
"Pseudocadoceras (Costacadoceras) sp." = Cadoceras (Pseudocadoceras) Buckman 1918 ammonite
Chamoussetia cf. buckmani Callomon and Wright 1989 ammonite
Chamoussetia phillipsi Callomon and Wright 1989 ammonite