EUROPEAN RUSSIA

ASTRAKHAN REGION

AKHTUBA DISTRICT

BOLSHOE BOGDO MOUNTAIN

BOGO FORMATION

MIDDLE FEDOROVKIAN HORIZON

MIDDLE YARENGIAN SUPRAHORIZON

UPPER OLENEKIAN SUBSTAGE

NAMMALIAN STAGE

SCYTHIAN EPOCH

EARLY TRIASSIC

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: DIAPSIDA OSBORN, 1904

SUPERLEGION: NEODIAPSIDA BENTON, 1985

LEGION: ARCHOSAUROMORPHA HUENE, 1946

SUPERCOHORT: CRUROTARSI SERENO & ARCUCCI, 1990

COHORT: CROCODYLOTARSI BENTON & CLARK, 1988

MAGNORDER: SUCHIA KREBS, 1974

SUPERORDER: PSEUDOSUCHIA ZITTEL 1887-1890

GRANDORDER: RAUISUCHIFORMES PARRISH, 1993

ORDER: RAUISUCHIA Bonaparte, 1984

SUBORDER: ERYTHROSUCHIA BONPARTE, 1982

Family: ERYTHROSUCHIDAE Broom, 1905

Gen. sp indet.

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