SE EUROPEAN RUSSIA
OSINOVSKAYA SVITA
EARLY KAZANIAN SUBSTAGE
CAPITANIAN STAGE
MIDDLE ZECHSTEIN EPOCH
LATE MIDDLE PERMIAN
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: STEREOSPONDYLOMORPHA YATES & WARREN, 2000
SUBORDER: ARCHEGOSAURIFORMES SCHOCH & MILNER, 2000
SUPERFAMILY: ARCHEGOSAUROIDEA MEYER, 1857 (SENSU EFREMOV, 1932)
Family: ARCHEGOSAURIDAE Meyer, 1857
Subfamily: PLATYOPOSAURINAE Huene, 1931
Platyoposaurus sp
_____________________________________________________________________________________