CALIFORNIA
SHASTA COUNTY
UCMP LOCALITY 1012
HOSSELKUS FORMATION
CARNIAN STAGE
LOWER LATE TRIASSIC EPOCH
LATE TRIASSIC
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1903
INFRACLASS: NEODIAPSIDA BENTON, 1985
ORDER: THALATTOSAURIDAE MERRIAM, 1904
SUBORDER: CLARAZISAUROIDEA HOFFSTETTER, 1955
Family: CLARAZIIDAE Peyer, 1936
*Nectosaurus halius
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CALIFORNIA
SHASTA COUNTY
UCMP 1013
LYING BETWEEN SQUAW CREEK AND PITT RIVER
HOSSELKUS FORMATION
CARNIAN STAGE
LOWER LATE TRIASSIC EPOCH
LATE TRIASSIC
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1903
INFRACLASS: NEODIAPSIDA BENTON, 1985
ORDER: THALATTOSAURIDAE MERRIAM, 1904
SUBORDER: THALATTOSAUROIDEA MERRIAM, 1904
Family: THALATTOSAURIDAE Merriam, 1904
*Thalattosaurus alexandrae
Thalattosaurus spSUBORDER: CLARAZISAUROIDEA HOFFSTETTER, 1955
Family: CLARAZIIDAE Peyer, 1936
Nectosaurus sp
= Thalattosaurus shastensis
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CALIFORNIA
SHASTA COUNTY
SMITH COVE NEAR SQUAW CREEK
HOSSELKUS FORMATION
CARNIAN STAGE
LOWER LATE TRIASSIC EPOCH
LATE TRIASSIC
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1903
INFRACLASS: NEODIAPSIDA BENTON, 1985
ORDER: THALATTOSAURIDAE MERRIAM, 1904
SUBORDER: THALATTOSAUROIDEA MERRIAM, 1904
Family: THALATTOSAURIDAE Merriam, 1904
*Thalattosaurus perrini
= Scenodon perrini
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CALIFORNIA
SHASTA COUNTY
BETWEEN SQUAY CREEK AND PITT RIVER
HOSSELKUS LIMESTONE
CARNIAN STAGE
MIDDLE TRIASSIC EPOCH
LATE 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: LONGIPINNATI HUENE, 1948
ORDER: MERRIAMOSAURIA MONTANI, 1999
SUBORDER: SHASTASAURIA MONTANI, 1999
Family: SHASTASAURIDAE Merriam, 1895
*Shastasaurus pacificus
= *Shastasaurus osmonti
= *Shastasaurus altispinus
= *Shastasaurus alexandraeSUBORDER: EUICHTHYOSAURIA MONTANI, 1999
Family: CALIFORNOSAURIDAE Huene, 1948
*Californosaurus perrini
= Shastasaurus perrini
= Delphinosaurus perrini
= Perrinosaurus perrini
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CALIFORNIA
SHASTA COUNTY
A FEW MILES NE OF WINTHROP
HOSSELKUS LIMESTONE FORMATION
TRACHYCERAS HORIZON
CARNIAN STAGE
MIDDLE TRIASSIC EPOCH
LATE 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: LONGIPINNATI HUENE, 1948
Family: TORETOCNEMIDAE Maisch & Matzke, 2000
*Toretocnemus californicus
*Toretocnemus zitteli
= Leptocherius zitteli
= Merriamia zitteli
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CALIFORNIA
SHASTA COUNTY
NEAR COVE
HOSSELKUS LIMESTONE FORMATION
CARNIAN STAGE
MIDDLE TRIASSIC EPOCH
LATE 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: LONGIPINNATI HUENE, 1948
ORDER: MERRIAMOSAURIA MONTANI, 1999
SUBORDER: SHASTASAURIA MONTANI, 1999
Family: SHASTASAURIDAE Merriam, 1895
Shastasaurus pacificus
= *Shastasaurus altispinus
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