ammonites
Brachythyrina byrangi Chernyak 1963 (lamp shell)

Rhynchonellata - Spiriferida - Choristitidae

Full reference: G. E. Chernyak. 1963. Taxonomic names, in Biostratigrafiya i Brakhiopody Verknego Paleozoya Taimyra. Trudy Nauchno-Issledoratel'skogo Instituta Geologii Arktiki 134:1-139

Belongs to Brachythyrina according to G. E. Chernyak 1963

Sister taxa: Brachythyrina abnormalis, Brachythyrina gobbetti, Brachythyrina jakovlevi, Brachythyrina lata, Brachythyrina peregrina, Brachythyrina rectangula, Brachythyrina sibirica, Brachythyrina strangwaysi, Brachythyrina tricostata

Ecology: stationary epifaunal suspension feeder