EUROPEAN RUSSIA

ORENBURG REGION

BUZULUKSKII DISTRICT

PREOBRAZHENKA LOCALITY

NORTHERN DVINA HORIZON

PROELGINIA PERMIANA ZONE

UPPER TATARIAN AGE

LOPINGIAN SUBEPOCH

ZECHSTEIN EPOCH

LATE PERMIAN

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: AMPHIBIA LINNAEUS, 1758

NEOTETRAPODA

SUBCLASS: REPTILIOMORPHA SAVE-SODERBERGH, 1934

ORDER: SEYMOURIAMORPHA WATSON, 1917

SUBORDER: SEYMOURIDA TATARINOV, 1971

Superfamily: KOTLASSOIDEA Romer, 1933 (sensu Vjuschkov, 1957)

Family: KOTLASSIDAE Romer, 1933

Subfamily: KOTLASSIINAE Romer, 1933

Microphon sp

SUBORDER: CHRONIOSUCHIDA TATARINOV, 1971

Family: CHRONIOSUCHIDAE Vjuschkov, 1957

Chroniosaurus levis