EUROPEAN RUSSIA
KOMI REPUBLIC
RIGHT BANK OF MALYY ARANETS RIVER
KRASNOKAMENSKAYA FORMATION
MIDDLE 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: PLAGIOSAURIA NILSSON, 1939 EMEND PANCHEN, 1959
Superfamily: PLAGIOSAUROIDEA Jaekel, 1913 (sensu Kuhn, 1965)
Family: PLAGIOSAURIDAE Jaekel, 1913
Subfamily: PLAGIOSTERNINAE Shishkin, 1986