Chernyshev Ridge, Adz'va River (Devonian of Russian Federation)

Where: Komi, Russian Federation (66.8° N, 63.1° E: paleocoordinates 13.5° N, 9.8° E)

When: marginifera conodont zone, Middle Famennian (370.6 - 364.7 Ma)

• Middle Famennian, the Late marginifera Zone

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Collection methods: Repository: Laboratory of Palaeontology, St. Petersburg University , St. Petersburg, Russia

Primary reference: A. Ivanov. 1999. Late Devonian - Early Permian chondrichthyans of the Russian Arctic. Acta Palaeontologica Polonica 49(3):267-285 [M. Clapham/P. Vazquez]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 133359: authorized by Matthew Clapham, entered by Priscilla Vazquez on 10.09.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Symmoriiformes - Symmoriidae
"Stethacanthidae indet." = Symmoriidae
"Stethacanthidae indet." = Symmoriidae Dean 1909 elasmobranch
 Ctenacanthiformes - Ctenacanthidae
? Ctenacanthidae indet. Dean 1909 elasmobranch