ammonites
Richthofenia caucasica Licharew 1928 (lamp shell)

Strophomenata - Productida - Richthofeniidae

Full reference: B. Licharew. 1928. Uber einige seltene und neue Brachiopoden aus dem Unterperm des norlichen Kaukasus. Palaeontologische Zeitschrift 10:258-289

Belongs to Richthofenia according to G. V. Kotlyar 1989

Sister taxa: Richthofenia anshunensis, Richthofenia elegans, Richthofenia guangdeensis, Richthofenia lawrenciana, Richthofenia orientalis, Richthofenia sinensis, Richthofenia tilita, Richthofenia ussurica

Type specimen: Its type locality is Severnaya Balka, Malaya Laba River (Robinson coll), which is in a Changhsingian carbonate limestone in the Urushten Formation of the Russian Federation

Ecology: stationary low-level epifaunal suspension feeder

Average measurements (in mm): valve 17.1 x 20.4