Species: tener CHUDINOV, 1960
Etymology:
Holotype: PIN 1758/2
Locality: Ezhovo locality (Yezhovo settlement), Ochersky area, Ocherskii (Otcher) District, Permian (Perm) region, European Russia.
Horizon: Biarmian Series.
Biostratigraphy: Ocher Faunal Assemblage, Ocher Faunal Subassemblage, Zone 1.
Age: Upper Kazanian Substage, Lower Tatarian Age, Capitanian Stage, Middle Zechstein Epoch, Late Middle Permian.
Material: Skull and mandible and fragmentary skeleton.
Referred material:
PIN 1758/8: Fragmentary skull and complete skeleton missing feet.
PIN 1758/17: Sacrum and pelvis.
PIN 1758/18: Fragmentary skull.
PIN 1758/19: Posterior part of skull and complete skeleton.
PIN 1758/86: Fragmentary skull and complete skeleton.
PIN 1758/212: Canine.
PIN 1758/260: Distal end of humerus.
PIN 1758/255: Fragmentary skull.
PIN 1758/307: Dentary.
PIN 1758/320: Anterior and posterior feet.
PIN 1758/334: Incisor.
= Biarmosaurus antecessor CHUDINOV, 1960
Etymology:
= Biarmosuchus antecessor (CHUDINOV, 1960)Holotype: PIN 1758/7
Locality: Ezhovo locality (Yezhovo settlement), Ochersky area, Ocherskii (Otcher) District, Permian (Perm) region, European Russia.
Horizon: Biarmian Series.
Biostratigraphy: Ocher Faunal Assemblage, Ocher Faunal Subassemblage, Zone 1.
Age: Upper Kazanian Substage, Lower Tatarian Age, Capitanian Stage, Middle Zechstein Epoch, Late Middle Permian.
Material: Skull and dentary.
= Eotitanosuchus olsoni CHUDINOV, 1960
Etymology:Holotype: PIN 1758/1
Locality: Ezhovo locality (Yezhovo settlement), Ochersky area, Ocherskii (Otcher) District, Permian (Perm) region, European Russia.
Horizon: Biarmian Series.
Biostratigraphy: Ocher Faunal Assemblage, Ocher Faunal Subassemblage, Zone 1.
Age: Upper Kazanian Substage, Lower Tatarian Age, Capitanian Stage, Middle Zechstein Epoch, Late Middle Permian.
Material: Skull.
Referred material:
PIN 1758/85: Undescribed skull.
PIN 1758/319: Fragmentary skull and fragmentary dentary.
PIN 1758/229: Atlas and axis.
= Ivantosaurus ensifer CHUDINOV, 1983
Etymology:Holotype: PIN 1758/292
Locality: Ezhovo locality (Yezhovo settlement), Ochersky area, Ocherskii (Otcher) District, Permian (Perm) region, European Russia.
Horizon: Biarmian Series.
Biostratigraphy: Ocher Faunal Assemblage, Ocher Faunal Subassemblage, Zone 1.
Age: Upper Kazanian Substage, Lower Tatarian Age, Capitanian Stage, Middle Zechstein Epoch, Late Middle Permian.
Material: Maxillary and quadrate found in association and in their respective natural position.
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Species: chudinovi IVACHNENKO, 1999
Etymology: In honor of paleontologist P. K. Tchudinov.
= Biarmosuchus tchudinovi IVACHNENKO, 1999
Holotype: PIN 4309/1
Locality: Sokol Locality, Peat Field Sokol, Zav’yalovo District, Udmurtia Republic, European Russia.
Horizon: Biarmian Seiries, Upper Kazanian Substage.
Biostratigraphy: Ocher Faunal Assemblage, Ocher Faunal Subassemblage.
Age: Upper Kazanian or Lower Tatarian Age, Capitanian Stage, Middle Zechstein Epoch, Late Middle Permian.
Material: Left maxilla and fragmentary palatine.
Referred material:
PIN 4309/2: Right maxilla.