EUROPEAN RUSSIA

KOSTROMA OBLAST

MAKARIEV DISTRICT

MIKHALENINO VILLAGE

KOLOGRIV FORMATION

CADOCERAS ELATMAE AMMONITE BIOZONE

KOLOGRIV FORMATION

LOWER CALLOVIAN STAGE

UPPER DOGGER EPOCH

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

Morphotype 2

Gen. sp indet.

Subfamily: GEOSAURINAE Lydekker, 1889

Tribe: GEOSAURINI Lydekker, 1889

Gen. sp indet.

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EUROPEAN RUSSIA

KOSTROMA OBLAST

MAKARIEV DISTRICT

UNZHA VILLAGE

CADOCERAS ELATMAE AMMONITE BIOZONE

KOLOGRIV FORMATION

LOWER CALLOVIAN STAGE

UPPER DOGGER EPOCH

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

Morphotype 1

Gen. sp indet.

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EUROPEAN RUSSIA

?KOSTROMA REGION

NEISKII DISTRICT

MAKAR'EV (?) LOCALITY

RYBINSKIAN HORIZON

VETLUGA SERIES

SHILIKHA FORMATION

OLENEKIAN STAGE?

UPPER SCYTHIAN EPOCH

EARLY 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: TREMATOSAURIA PIVETEAU, 1955

Superfamily: TREMATOSAUROIDEA Save-Soderbergh, 1935

Family: BENTHOSUCHIDAE Efremov, 1931

Subfamily: BENTHOSUCHINAE Efremov, 1931 (sensu Efremov, 1937)

Benthosuchus bystrowi

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EASTERN EUROPEAN RUSSIA

KOSTROMA REGION (KOSTROMSKOJ OBLAST)

NEJSKIJ RAJON

UNZHA SITE NEAR MAKARYEV

VETLUGA SUBHORIZON

RYBINSKIAN HORIZON

EARLY 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: TREMATOSAURIA PIVETEAU, 1955

Superfamily: TREMATOSAUROIDEA Save-Soderbergh, 1935

Family: BENTHOSUCHIDAE Efremov, 1931

Subfamily: BENTHOSUCHINAE Efremov, 1931 (sensu Efremov, 1937)

*Benthosuchus bystrowi

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EUROPEAN RUSSIA

KOSTROMA REGION

KAMA RIVER BASIN

HAUTERIVIAN STAGE

UPPER NEOCOMIAN SUBEPOCH

EARLY CRETACEOUS EPOCH

EARLY EARLY CRETACEOUS

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: DIAPSIDA OSBORN, 1904

NEODIAPSIDA: BENTON, 1985

SUPERORDER: SAUROPTERYGIA OWEN 1860

GRANDORDER: EOSAUROPTERYGIA emend RIEPPEL, 1994

ORDER: PLESIOSAURIA OWEN, 1840 NON BLAINVILLE, 1835

SUBORDER: PLESIOSAURIA OWEN, 1840 NON BLAINVILLE, 1835

INFRAORDER: PLESIOSAUROMORPHA NOVA

EUPLESIOSAURIA O’KEEFE, 2001

Superfamily: ELASMOSAUROIDEA Cope, 1869

Family: ELASMOSAURIDAE Cope, 1869

Incertae sedis

non Elasmosaurus, *E. antiquus

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EUROPEAN RUSSIA

KOSTROMA REGION

KAMA RIVER BASIN

VOLGIAN

PORTLANDIAN

TITHONIAN STAGE

UPPER MALM EPOCH

LATE JURASSIC

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: DIAPSIDA OSBORN, 1904

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

INFRAORDER: PLESIOSAUROMORPHA NOVA

EUPLESIOSAURIA O’KEEFE, 2001

Superfamily: ELASMOSAUROIDEA Cope, 1869

Family: ELASMOSAURIDAE Cope, 1869

Incertae sedis

non Muraenosaurus, *M. kamensis

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EUROPEAN RUSSIA

KOSTROMA REGION

DORF GRADULEVO

UPPER CALLOVIAN STAGE

UPPER DOGGER EPOCH OR OXFORDIAN STAGE

LOWER MALM EPOCH

LATE JURASSIC

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: DIAPSIDA OSBORN, 1904

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

INFRAORDER: PLIOSAUROMORPHA NOVA

Superfamily: PLIOSAUROIDEA Seeley, 1874

Family: PLIOSAURIDAE Seeley, 1874

Peloneustus philarchus

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EUROPEAN RUSSIA

KOSTROMA REGION

PLJOS

PORTLANDIAN

TITHONIAN STAGE

UPPER MALM EPOCH

LATE JURASSIC

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: DIAPSIDA OSBORN, 1904

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

INFRAORDER: PLESIOSAUROMORPHA NOVA

EUPLESIOSAURIA O’KEEFE, 2001

Superfamily: CRYPTOCLEIDOIDEA Williston, 1925

Family: CRYPTOCLEIDAE Williston, 1925

Incertae sedis

non Colymbosaurus, *C. brachistospondylus
= Plesiosaurus brachistospondylus

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