EUROPEAN RUSSIA

UDMURT REPUBLIC

ZAV’YALOVO DISTRICT

SOKOL LOCALITY

PEAT FIELD SOKOL

BIARMIAN SEIRIES

UPPER KAZANIAN SUBSTAGE

OCHER FAUNAL ASSEMBLAGE

OCHER FAUNAL SUBASSEMBLAGE

UPPER KAZANIAN OR LOWER TATARIAN AGE

CAPITANIAN STAGE

MIDDLE ZECHSTEIN EPOCH

LATE MIDDLE PERMIAN

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: SYNAPSIDA OSBORN, 1903

INFRACLASS DINOMORPHA IVAKNENKO, 2008

SUPERORDER: GORGONTIA IVAKNENKO, 2008

ORDER: DEINOCEPHALIA OLSEN, 1962

SUBORDER: EUDEINOCEPHALIA APPLEBY, CHARIG, COX, KERMACK & TARLO, 1967

INFRAORDER: EOTITANOSUCHIA BOONSTRA, 1963

Family: EOTITANOSUCHIDAE CHUDINOV, 1960

*Biarmosuchus chudinovi