Species: simus IVAKHENKO, 1974
Etymology: Greek, simos, "flat nose."
Holotype: PIN 3355/1
Locality: Lipovo village, Gor'kiy oblast, Nizhnii Novgorod Province, European Russia.
Horizon:
Biostratigraphy:
Age: Base of the Vetluga series, Vokmian Gorizont, Early Triassic.
Material: Nearly complete skull and lower jaw.
Referred material:
Locality: Kas'yanovtsy suite in Kirov oblast, European Russia.
Horizon:
Biostratigraphy:
Age: Vetluga series, Early Triassic.
Material:
PIN 2890/5: Incomplete skull.
Locality: Sarafanikha site in Gor'kiy oblast, Nizhnii Novgorod Province, European Russia.Horizon: V
Biostratigraphy:
Age: Vetluga series, Early Triassic.
Material:
PIN 3356/1: Skull and fragmentary skeleton.
And separate skull bones from a number of other sites.
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Species: convector IVAKHNEKO, 1979
Etymology:
Holotype: PIN 3357/1
Locality: Krasnyye Baki village, Gor'kiy oblast, Nizhnii Novgorod Province, European Russia.
Horizon:
Biostratigraphy:
Age: Base of Vetluga series, Early Triassic.
Material: Fragmentary lower jaw and fragment of premaxilla and maxilla.
Referred material:
Locality: From the site near Krasnyye Baki Village, European Russia.
Horizon:
Biostratigraphy:
Age: Vetluga series, Early Triassic.
Material:
PIN 3357/2: Part of an upper jaw.