NEVADA
PERSHING COUNTY
AUGUSTA MOUNTAINS
NORHTERN SLOPE OF THE REAR OF FAVERET CANYON
UPPER THIRD OF FOSSIL HILL MEMBER
FAVRET FORMATION
ROTELIFFORMES OR MEEKI ZONES
ANISIAN STAGE
LOWER MIDDLE TRIASSIC EPOCH
MIDDLE TRIASSIC
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
Family: CYMBOSPONDYLIDAE Huene, 1948
*Cymbospondylus duelferi
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NEVADA
PERSHING COUNTY
WEST HUMBOLDT RANGE
SOUTH FORK OF AMERICAN CANYON
CYMBOSPONDYLUS BEDS
ANISIAN STAGE
LOWER MIDDLE TRIASSIC EPOCH
MIDDLE 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
Family: OMPHALOSAURIDAE Merriam, 1906
*Omphalosaurus nevadanus
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NEVADA
PERSHING COUNTY
WEST HUMBOLDT RANGE
AMERICAN CANYON
CYMBOSPONDYLUS BEDS
ANISIAN STAGE
LOWER MIDDLE TRIASSIC EPOCH
MIDDLE TRIASSIC
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
Family: CYMBOSPONDYLIDAE Huene, 1948
Cymbospondylus petrinus
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NEVADA
PERSHING COUNTY
AUGUSTA MOUNTAINS
NORTH BRANCH OF THE CANYON SOUTH OF FAVRET CANYON, INFORMALLY KNOWN AS MULLER CANYON
FOSSIL HILL MEMBER
FAVRET FORMATION
ANISIAN STAGE
LOWER MID TRIASSIC EPOCH
MIDDLE TRIASSIC
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: HUENEOSAURIA MAISCH & MATZKE, 2000
ORDER: MIXOSAUROIDEA (BAUR, 1887)
Family: MIXOSAURIDAE Baur, 1887
*Mixosaurus callawayi
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NEVADA
PERSHING COUNTY
AUGUSTA MOUNTAINS
EXACT LOCALITY ON FILE AT THE FMNH
FOSSIL HILL MEMBER
FAVRET FORMATION
ANISIAN STAGE
LOWER MID TRIASSIC EPOCH
LOWER MIDDLE TRIASSIC
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
Family: CYMBOSPONDYLIDAE Huene, 1948
*Cymbospondylus nichollsi
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