NORTHERN SIBERIA
YAKUSTK REGION
OLENEK BASIN
BULUN DISTRICT
BUUR RIVER (KARYA-KHOS-TERYUTEKH RIVER)
TERYUTEKHY FORMATION
LOWER 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: STEREOSPONDYLOMORPHA YATES & WARREN, 2000
SUBORDER: RHINESUCHOIDEA ROMER, 1947
INFRAORDER: RHYTIDOSTEA SCHOCH & MILNER, 2000
Superfamily: RHYTIDOSTEOIDEA Huene, 1920 (sensu Cosgriff, 1965)
Family: RHYTIDOSTEIDAE Huene, 1920
Subfamily: PELTOSTEGINAE (Save-Soderbergh, 1935)