ENGLAND
NOTTINGHAMSHIRE COUNTY
BRANSTONE
HYDRAULIC LIMESTONE
TILMANNI ZONE
LOWER HETTANGIAN STAGE
LOWER LIAS EPOCH
EARLY 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: ICHTHYOSAUROIDEA Bonaparte, 1841 (Emend McGowan & Montani, 2003)
Family: ICHTHYOSAURIDAE Bonaparte, 1841
Protoichthyosaurus prostaxalis
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SOUTHERN UNITED
KINGDOM
ENGLAND
NOTTINGHAMSHIRE
COUNTY
NEAR NORMANTON ON
SOAR
NORMANTON HILLS
BARNSTONE MEMBER
PERHAPS THE
SCUNTHORPE MUDSTONE FORMATION
EITHER THE TOP OF
THE PRE-PLANORBIS BEDS OR BASE OF THE
PLANORBIS ZONE
LOWERMOST
HETTANGIAN STAGE
LOWERMOST LIAS
EPOCH
EARLIEST EARLY 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: EURHINOSAUROIDEA EMEND MONTANI, 1999
Family: LEPTONECTIDAE Maisch, 1998
*Wahlisaurus massarae
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