BRAZIL
RIO GRANDE DO SUL STATE
KM 176 OF THE BR 153
UPPER LEVELS OF THE RIO DO RASTO FORMATION
LATE 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
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