Genus: Syodon KUTORGA, 1838
Etymology: Greek, syos, “hog”, Greek, odon, “tooth”: Hog tooth.
= Cliorhizodon TWELVETREES, 1880
Etymology: Greek, kleio, “close, shut”, Greek, rhiza, “root”, Greek, odon, “tooth”: Closed-root tooth.

Species: biarmicum KUTORGA, 1838
Etymology:

Holotype: LGU/ChMP 140/1

Locality: Karglay Mines, Copper Sandstones, Perm Region, European Russia.

Horizon: Ufimian Stage, Sheshmian Horizon.

Biostratigraphy:

Age: Lower Tatarian Age, Capitanian Stage, Middle Zechstein Epoch, Late Middle Permian.

Material: Tusk.

Referred material:

EFRIMOV, 1954

PIN 273/4: Femur.

 


= Cliorhizodon orenburgensis TWELVETREES, 1880
Etymology:

Holotype: BMNH R4077

Locality: Rozhdestvenskii Rudnik Locality (Copper mine of Roshdestvensk), about 30 miles north of Orenberg, Perm Region, European Russia.

Horizon:

Biostratigraphy:

Age: Late Permian.

Material: Fragmentary skull.

 


= Deuterosaurus biarmicus EICHWALD, 1860
Etymology:

Holotype:

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

 


= Deuterosaurus seeleyi NOPCSA
Etymology:

Holotype:

Locality:

Horizon:

Biostratigraphy:

Age:

Material:


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Species: efremovi (ORLOV, 1940) ORLOV, 1958
Etymology:
= Cliorhizodon efremovi ORLOV, 1940

Holotype: PIN 157/2

Locality: Isheevo Locality, Kamenny Ovrag (Kamennyi Ravine, Stone Ravine) left bank of Ulema River, tributary of Sviaga River, 7 km from Isheevo-Nikiforovo Village, Apastovskii (Apostov) District, Tartstan (Tartar), SSSR, European Russia.

Horizon: Urzhumian Stage, Urzhumian Horizon (Dinocephalian Complex).

Biostratigraphy: Isheevo Faunal Assemblage, Isheevo Faunal Subassemblage, Zone II.

Age: Lower Tatarian Substage, Capitanian Stage, Middle Zechstein Epoch, Late Middle Permian.

Material: Skull.

Referred material:

PIN 157/677: A set of lower jaws broken off anterior to the articular region.

IVAKHNEKO, 2008b

PIN 157/635: Right palatine.

PIN 157/670: Right quadrate.

PIN 157/1045, 1047: Partial periotics.

KAMMERER, 2011

PIN 157/184: a PARTIAL BASICRANIUM.

PIN 157/251-/254, 256: Incisors.

PIN 157/540, 637-/639, /641-/647, /649, /650: Palatines.

PIN 157/604: Postfrontal.

PIN 157/651, /654, /660: Lacrimals.

PIN 157/655, /663, /665: Postfrontals.

PIN 157/657: A partial vomer.

PIN 157/673: A dentary fragment.

PIN 157/674: A partial maxilla.

PIN 157/675: A maxilla.

PIN 157/676: A mandibular symphysis.

PIN 157/683: A partia pterygoid.

PIN 157/684: A pterygoid.

PIN 157/1062: A partial vomer.

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