ammonites
Marginalosia magna Abramov and Grigorieva 1988 (lamp shell)

Strophomenata - Productida - Strophalosiidae

Full reference: B.C. Abramov and A.D. Grigorieva. 1988. Biostratigraphiya i Brakhiopody Permi Verkhoyaniya 1-204

Belongs to Marginalosia according to B.C. Abramov and A.D. Grigorieva 1988

Sister taxa: Marginalosia kalikotei, Marginalosia planata

Type specimen: PIN 4065/325. Its type locality is Kobyuma River, T. 4/118, Southern Verkhoyan, which is in a Capitanian marine siliciclastic in the Lugov Formation of the Russian Federation.

Ecology: stationary low-level epifaunal suspension feeder

Average measurements (in mm): valve 37.9 x 50.4