Insecta - Coleoptera - Gyrinidae

Full reference: A. G. Ponomarenko. 1977. Suborder Adephaga, Polyphaga Incertae Sedis, Infraorder Staphyliniformia, in Mezozoiskie zhestkokryiye [Mesozoic Coleoptera]. Trudy Paleontologicheskogo Instituta 161:17-119

Belongs to Angarogyrus according to A. Nel 1989

Sister taxon: Angarogyrus mongolicus

Type specimen: PIN 1874/30, an exoskeleton. Its type locality is Iya Locality (PIN collection 1874), which is in a Toarcian terrestrial horizon in the Cheremkhovskaya Formation of the Russian Federation.

Ecology:

Average measurements (in mm): body 3.70 x 2.20, elytron length 2.80