EUROPEAN RUSSIA
ORENBURG PROVINCE
30 M N OF ORENBURG
ROSHDESTVENSK
LATE PERMIAN
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: SYNAPSIDA OSBORN, 1903
SUPERORDER: THERASPID BROOM, 1905
GRANDORDER: EUTHERAPSIDA
ORDER: DEINOCEPHALIA OLSEN, 1962
SUBORDER: TAPINOCEPHALIA BOONSTRA, 1955
INFRAORDER: TITANOSUCHIA
Superfamily: TITANOSUCHOIDEA Olson, 1962
Family: SYODONTIDAE Ivakhnenko, 1994
Syodon biarmicum
= *Cliorhizodon orenburgensis
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