ammonites
Sakawairhynchia olenekensis Dagys 1965 (lamp shell)

Rhynchonellata - Rhynchonellida - Rhynchonellidae

Full reference: A. S. Dagys. 1965. Triasovye Brakhiopody Sibiri 1-186

Belongs to Sakawairhynchia according to A. S. Dagys 1985

Sister taxa: Sakawairhynchia aparimaensis, Sakawairhynchia bartrumi, Sakawairhynchia bencallumensis, Sakawairhynchia corbiensis, Sakawairhynchia diptonensis, Sakawairhynchia harihariensis, Sakawairhynchia hugonensis, Sakawairhynchia marokopana, Sakawairhynchia mokauensis, Sakawairhynchia momeaensis, Sakawairhynchia tokombensis, Sakawairhynchia zealandica

Type specimen: GM AN SSSR 19871. Its type locality is Cape Tumul, Olenek River mouth, which is in a Carnian marine siliciclastic in the Russian Federation.

Ecology: stationary epifaunal suspension feeder

Average measurements (in mm): shell 14.1 x 15.4, valve 17.6 x 18.5