EUROPEAN RUSSIA

SARATOV REGION

SARATOV

SOVKHOZ LENINSKIY PUT' NEAR CHP 5 POWER STATION

KHLEBNOVKA FORMATION

CADOCERAS ELATMAE OR CADOCHAMOUSSETIA SUBPATRUUS AMMONITE BIOZONE

LOWER HALF OF THE LOWER CALLOVIAN STAGE

MIDDLE 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

Morphotype 1

Gen. sp indet.

Subfamily: GEOSAURINAE Lydekker, 1889

Tribe: GEOSAURINI Lydekker, 1889

Gen. sp indet.

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EUROPEAN RUSSIA

SARATOV REGION

SARATOV DISTRICT

VILLAGE OF DUBKI

?UPPER SUBSTAGE

CALLOVIAN STAGE

MIDDLE 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: OPTHALMOSAURIDAE Seeley, 1874

Ophthalmosaurus icenicus
= *Khudiakovia calloviensis

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EUROPEAN RUSSIA

SARATOV REGION

SARATOV DISTRICT

VILLAGE OF DUBKI

NEAR THE HEAT AND POWER PLANT NO. 5

?UPPER SUBSTAGE

CALLOVIAN STAGE

MIDDLE 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

Incertae sedis

Gen. sp indet.