EUROPEAN RUSSIA
ORENBURG REGION
BUZULUK DISTRICT
PREOBRAZHENKA-2 LOCALITY
KUTULUK FORMATION
LOWER VYATKIAN STAGE
LOPINGIAN SUBEOCH
ZEICHISTIAN EPOCH
LATE PERMIAN
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: PARAREPTILIA OLSON 1947
INFRACLASS: SAUROPSIDA HUXLEY, 1864
ORDER: PROCOLOPHONOMORPHA ROMER, 1964
SUBORDER: PAREIASAUROIDEA SELEY, 1888
Family: PARAEIASAURIDAE Cope, 1869
*Senectosarus karamzini
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ORENBURG REGION
BUZULUK DISTRICT
VILLAGE OF PROKAYEVKA
STARITSKAYA SVITA
RYBINSKIAN GROIZONT
MIDDLE VETLUGIAN SUPERGORIZONT (KYZYLSAY FORMATION, RYBINSKIAN HORIZON, VETLUGA SERIES)
MIDDLE BUNTSANDSTEIN
LOWERMOST OLENEKIAN STAGE
UPPER SCYTHIAN EPOCH
EARLY TRIASSIC
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: AMPHIBIA LINNAEUS, 1758
SUBCLASS: LABYRINTHODONTIA OWEN, 1860
SUPERORDER: TEMNOSPONDYLIA ZITTEL, 1887
MICROORDER: LIMNARCHIA YATES & WARREN, 2000
ORDER: TREMATOSAURIA PIVETEAU, 1955
Superfamily: TREMATOSAUROIDEA Save-Soderbergh, 1935
Family: BENTHOSUCHIDAE Efremov, 1931
Subfamily: THOOSUCHINAE Getmanov, 1982
*Trematotegmen ochevi
Subfamily: BENTHOSUCHINAE Efremov, 1931 (sensu Efremov, 1937)
Benthosuchus sushkini
= Benthosaurus sushkini