EGMOUTH ISLAND
TRIASSIC
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: HUENEOSAURIA MAISCH & MATZKE, 2000
ORDER: MIXOSAUROIDEA (BAUR, 1887)
Family: MIXOSAURIDAE Baur, 1887
Subfamily: PHALARODONTINAE Maisch & Matzke, 2001
Phalarodon nordenskioldii
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ARTIC
SUMMIT OF EGMOUTH ISLAND
HORIZON NOT GIVEN
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: ICHTHYOSAUROIDEA Bonaparte, 1841 (Emend McGowan & Montani, 2003)
Family: ICHTHYOSAURIDAE Bonaparte, 1841
Incertae sedis
Ichthyosaurus sp
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ARCTIC
IN THE KARA SEA
LONELY ISLAND
APTIAN STAGE
MIDDLE GALLIC SUBEPOCH
UPPER EARLY CRETACEOUS EPOCH
EARLY CRETACEOUS
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
Family: PLESIOSAURIDAE Gray, 1825
Incertae sedis
non Plesiosaurus, P. latispinus
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ARTIC
UKNOWN
LATE CRETACEOUS
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
INFRAORDER: PLESIOSAUROMORPHA NOVA
EUPLESIOSAURIA O’KEEFE, 2001
Superfamily: CRYPTOCLEIDOIDEA Williston, 1925
TRICLEDIA O’KEEFE , 2001
Family: CIMOLIASAURIDAE Delair, 1959
Cimoliasaurus sp
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ARTIC
FRANZ JOSEPH LAND
HOOKER ISLAND
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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