EUROPEAN RUSSIA
ULYANOSK REGION
ULYANOVSK DISTRICT
GORODISCHI
TRAZOVO TO PROMZA FORMATION
LATE JURASSIC
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1904
SUPERLEGION: NEODIAPSIDA BENTON, 1985
LEGION: ARCHOSAUROMORPHA HUENE, 1946
SUPERCOHORT: CRUROTARSI SERENO & ARCUCCI, 1990
COHORT: CROCODYLOTARSI BENTON & CLARK, 1988
MAGNORDER: SUCHIA KREBS, 1974
SUPERORDER: CROCODYLOMORPHA WALKER, 1968
GRANDORDER: CROCODILIFORMES HAY, 1930
MICRORDER: MESOEUROCROCODYLIA WHETSTONE & WHYBROW, 1983
ORDER: MESOSUCHIA EMEND HUXLEY, 1875
SUBORDER: THALATTOSUCHIA EMEND FRAAS, 1901
Family: METRIORHYNCHIDAE Fitzinger, 1843
Gen. sp indet.
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EUROPEAN RUSSIA
ULYANOVSK REGION
ULVANOVSK DISTRICT
18 KM NORTH OF ULYANOVSK
RIGHT BANK OF THE VOLGA RIVER
VOLGIAN STAGE
DORSOPLANITES PANDERI ZONE
LATE JURASSIC
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
MICRORDER: LONGIPINNATI HUENE, 1948
ORDER: MERRIAMOSAURIA MONTANI, 1999
SUBORDER: EUICHTHYOSAURIA MONTANI, 1999
INFRAORDER: PARVIPELVIA MONTANI, 1999
PARVORDER: NEOICHTHYOSAURIA SANDER, 2000
Superfamily: OPHTHALMOSAURIDEA Seeley, 1874)
Family: OPHTHALMOSAURIDAE Seeley, 1874
Subfamily: PLATYPTERYGIINAE Arkhangelsky, 2011
*Otschevia alekseevi