EUROPEAN RUSSIA
KOSTROMA OBLAST
MAKARIEV DISTRICT
MIKHALENINO
REWORKED FAUNA OF P. ELATMAE AND C. SUBPATRUUS ZONE AT THE BASE OF G. GOWERIANUM SUBZONE
LOWER CALOVIAN STAGE
DOGGER EPOCH
MIDDLE JURASSIC
EUROPEAN RUSSIA
KOSTROMA OBLAST
MAKARIEV DISTRICT
MIKHALENINO
CLAYS AT TEH BOUNDARY FO THE LOWER AND MIDDLE CALOVIAN STAGE
DOGGER EPOCH
MIDDLE JURASSIC
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1904
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
Ophthalmosaurus icenicus
_____________________________________________________________________________________
EUROPEAN RUSSIA
KOSTROMA OBLAST
MAKARIEV DISTRICT
MIKHALENINO
REWORKED FAUNA OF P. ELATMAE AND C. SUBPATRUUS ZONE AT THE BASE OF G. GOWERIANUM SUBZONE
LOWER CALOVIAN STAGE
DOGGER EPOCH
MIDDLE JURASSIC
EUROPEAN RUSSIA
KOSTROMA OBLAST
MAKARIEV DISTRICT
MIKHALENINO
S. CALLOVIENSE ZONE
LOWER CALOVIAN STAGE
DOGGER EPOCH
MIDDLE JURASSIC
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1904
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.
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
Subfamily: CRYPTOCLEINAE Williston, 1925
cf Muraenosaurus sp
_____________________________________________________________________________________
EUROPEAN RUSSIA
KOSTROMA OBLAST
MAKARIEV DISTRICT
MIKHALENINO
REWORKED FAUNA OF P. ELATMAE AND C. SUBPATRUUS ZONE AT THE BASE OF G. GOWERIANUM SUBZONE
LOWER CALOVIAN STAGE
DOGGER EPOCH
MIDDLE JURASSIC
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1904
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.
MICRORDER: LONGIPINNATI HUENE, 1948
ORDER: MERRIAMOSAURIA MONTANI, 1999
SUBORDER: EUICHTHYOSAURIA MONTANI, 1999
INFRAORDER: PARVIPELVIA MONTANI, 1999
PARVORDER: NEOICHTHYOSAURIA SANDER, 2000
SUPERFAMILY: OPHTHALMOSAURIDEA SEELEY, 1874
Gen. sp indet
Family: OPHTHALMOSAURIDAE Seeley, 1874
cf. Ophthalmosaurus sp
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
EUPLESIOSAURIA O’KEEFE, 2001
EUPLESIOSAURIA O’KEEFE, 2001
Superfamily: CRYPTOCLEIDOIDEA Williston, 1925
Family: CRYPTOCLEIDAE Williston, 1925
Subfamily: CRYPTOCLEINAE Williston, 1925
cf Muraenosaurus sp
cf. Tricleidus
INFRAORDER: PLIOSAUROMORPHA NOVA
Superfamily: PLIOSAUROIDEA Seeley, 1874
Family: PLIOSAURIDAE Seeley, 1874
Simolestes sp.
Gen. sp indet.
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
Incertae sedis
Gen. sp indet.
Family: METRIORHYNCHIDAE Fitzinger, 1843
Gen. sp indet.
Subfamily: GEOSAURINAE Lydekker, 1889
Tribe: GEOSAURINI Lydekker, 1889
Gen. sp indet.
_____________________________________________________________________________________
EUROPEAN RUSSIA
KOSTROMA OBLAST
MAKARIEV DISTRICT
MAKARIEVI
C. ENODATUM SUBZONE
S. CALLOVIENSE ZONE
LOWER CALOVIAN STAGE
DOGGER EPOCH
MIDDLE 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
Simolestes sp
_____________________________________________________________________________________
EUROPEAN RUSSIA
KOSTROMA OBLAST
MAKARIEV DISTRICT
MAKARIEVI
S. CALLOVIENSE ZONE
LOWER CALOVIAN STAGE
DOGGER EPOCH
MIDDLE 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
Superfamily: PLIOSAUROIDEA Seeley, 1874
THALASSOPHONEA BENSON & DRUCKENBILLER, 2013
Incertae sedis
Liopleurodon sp
_____________________________________________________________________________________
EUROPEAN RUSSIA
KOSTROMA OBLAST
MAKARIEV DISTRICT
MAKARIEVI NORTH LOCALITY
G. GALILAELI SUBZONE
PR. KOENIGI ZONE
LOWER CALOVIAN STAGE
DOGGER EPOCH
MIDDLE 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
Superfamily: PLIOSAUROIDEA Seeley, 1874
THALASSOPHONEA BENSON & DRUCKENBILLER, 2013
Incertae sedis
Liopleurodon ferox
_____________________________________________________________________________________
EUROPEAN RUSSIA
KOSTROMA OBLAST
MAKARIEV DISTRICT
MAKARIEVI NORTH LOCALITY
S. CALLOVIENSIS ZONE
LOWER CALOVIAN STAGE
DOGGER EPOCH
MIDDLE 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
EUPLESIOSAURIA O’KEEFE, 2001
EUPLESIOSAURIA O’KEEFE, 2001
Superfamily: CRYPTOCLEIDOIDEA Williston, 1925
Family: CRYPTOCLEIDAE Williston, 1925
Subfamily: CRYPTOCLEINAE Williston, 1925
cf. Cryptoclidus sp
SUBORDER: PLESIOSAURIA OWEN, 1840 NON BLAINVILLE, 1835
INFRAORDER: PLIOSAUROMORPHA NOVA
Superfamily: PLIOSAUROIDEA Seeley, 1874
Superfamily: PLIOSAUROIDEA Seeley, 1874
Incertae sedis
Gen. sp indet
_____________________________________________________________________________________
EUROPEAN RUSSIA
KOSTROMA OBLAST
MANTUROVO DISTRICT
GRADULEVO
G. GALILAELI SUBZONE
PR. KOENIGI ZONE
LOWER CALOVIAN STAGE
DOGGER EPOCH
MIDDLE JURASSIC
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1904
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
cf. Ophthalmosaurus sp
_____________________________________________________________________________________
EUROPEAN RUSSIA
KOSTROMA OBLAST
MANTUROVO DISTRICT
GRADULEVO
MIDDLE CALOVIAN STAGE
DOGGER EPOCH
MIDDLE JURASSIC-MIDDLE OXFORDIAN STAGE
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
Incertae sedis
Gen. sp indet.
_____________________________________________________________________________________
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.
_____________________________________________________________________________________
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.
_____________________________________________________________________________________
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
_____________________________________________________________________________________
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)
_____________________________________________________________________________________
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
_____________________________________________________________________________________
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
_____________________________________________________________________________________
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
_____________________________________________________________________________________
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
_____________________________________________________________________________________