ASIAN RUSSIA
SIBERIA
ANABAR RIVER
MOUTH OF THE KHARABYL RIVER
LOWER SUBSTAGE
VALANGINIAN STAGE
NEOCOMIAN SUBEPOCH
EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
Incertae sedis
Gen. sp indet.
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ASIAN RUSSIA
SIBERIA
ANABAR RIVER
VILLAGE OF YURYUNG-KHAYA
VALANGINIAN STAGE
NEOCOMIAN SUBEPOCH
EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1903
INFRACLASS: NEODIAPSIDA BENTON, 1985
NEODIAPSIDA: INCERTAE SEDIS
OR AMNIOTA: INCERTAE SEDIS
MAGANORDER: ICHTHYOPTERYGIA BAUR, 1887 emend nova
SUPERORDER: EOICHTHYOSAURIA MOTANI, 1999
GRANDORDER: ICHTHYOSAURIA EMEND BLAINVILLE, 1835
Incertae sedis
Gen. sp indet.
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ASIAN RUSSIA
SIBERIA
SYORTYNYA RIVER
SUPOLAR URALS
VALANGINIAN OR RYAZANIAN (?) STAGE
NEOCOMIAN SUBEPOCH
EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1903
INFRACLASS: EURYAPSIDA COLBERT, 1945
SUPERORDER: SAUROPTERYGIA OWEN 1860
GRANDORDER: EOSAUROPTERYGIA emend RIEPPEL, 1994
ORDER: PLESIOSAURIA OWEN, 1840 NON BLAINVILLE, 1835
SUBORDER: PLESIOSAURIA OWEN, 1840 NON BLAINVILLE, 1835
Incertae sides
Gen. sp indet.
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