Species: aenigmaticum EFREMOV, 1954
Etymology:
Holotype: PIN 294/25
Locality: Santagulov Mine, on the Dema River, Bashkortostan (Baskir) Province, European Russia.
Horizon:
Biostratigraphy: Golyusherm Subassemblage, Zone I.
Age: Lower Part of the Kazanian Substage, Wodian-lower Capitanian Stage, Guadelupian Stage, Lower Zechstein Epoch, Early Late Permian.
Material: Right femur.
Note: Original is lost (Brocklehurst & Frobish, 2017).