SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: AMPHIBIA LINNAEUS, 1758

NEOTETRAPODA

SUBCLASS: REPTILIOMORPHA SAVE-SODERBERGH, 1934

ORDER: SEYMOURIAMORPHA WATSON, 1917

Incertae sedis

*Xenodiphyodon petraios

SUBCLASS: LISSAMPHIBIA, HAECKEL, 1866?

SUPERORDER: BATRACHIA BRONGNIART, 1800

ORDER: CAUDATA SCOPOLI, 1777

Incertae sedis

Gen. sp indet.

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: PARAREPTILIA OLSON 1947

INFRACLASS: SAUROPSIDA HUXLEY, 1864

ORDER: PROCOLOPHONOMORPHA ROMER, 1964

SUBORDER: PROCOLPHOMORPHA SEELEY, 1888

Family: PROCOLOPHONIDAE, Seeley, 1888

Incertae sedis

Colognathus obscurus
= Xenognathus obscurus

Subfamily: PROCOLOPHONINAE Seeley, 1888 (sensu Romer, 1956)

*Gomphiosauridion baileyae

SUBCLASS: DIAPSIDA OSBORN, 1903

INFRACLASS: NEODIAPSIDA BENTON, 1985

LEGION: LEPIDOSAUROMORPHA DUMERIL & BIBRON, 1839

Incertae sedis

*Vinitasaura lizae

SUBLEGION: LEPIDOSAURIA HAECKEL, 1866 (DUMERIL & BIBRON, 1839)

MAGNORDER: SPHENODONTIFORMES Hay, 1930

ORDER: SPHENODONTIA WILLISTON, 1925

Incertae sedis

Gen. sp indet.

Family: SPHENODONTIDAE Cope, 1869

Diphydontosaurus sp

MAGNORDER: SQUAMATA OPPEL, 1811

SUPERORDER: LACERTILIA OWEN, 1842

Incertae sedis

Gen. sp indet.

SUBCLASS: SYNAPSIDA OSBORN, 1903

SUPERORDER: THERASPIDA BROOM, 1905

GRANDORDER: EUTHERAPSIDA

MICRORDER: NEOTHERAPSIDA

ORDER: THERIODONTIA OWEN, 1881

EUTHERIODONTIA

SUBORDER: CYNODONTIA OWEN, 1860

EPICYNODONTIA HOPSON & KITCHING, 2001

INFRAORDER: EUCYNODONTIA

MAMMALIAMORPHA ROWE, 1988

Superfamily: CHINQUODONTOIDEA Huene, 1936

Family: CHINIQUODONTIDAE Huene, 1936

Microconodon tenuirostris
Microconodon cf.
Microconodon sp

Superfamily: TRITYLODONTIA Cope, 1884 (sensu Kuhne, 1943)

Family: TRAVERSODONTIDAE Huene, 1936

*Boreogomphodon jeffersoni

cf. Scalenodon
= cf. Luangwa

 

_____________________________________________________________________________________

VIRGINIA

CHESTERFIELD COUNTY

TOMAHAWK LOCALITY

USNM LOCALITY 39981

TOMAHAWK MEMBER

TOMAHAWK CREEK MEMBER

VINITA FORMATION

NEWARK SUPERGROUP

LATE CARNIAN STAGE

EARLY LATE TRIASSIC EPOCH

LATE TRIASSIC

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: DIAPSIDA OSBORN, 1904

INFRACLASS: NEODIAPSIDA BENTON, 1985

LEGION: LEPIDOSAUROMORPHA DUMERIL & BIBRON, 1839

Incertae sedis

Family: KUEHNEOSAURIDAE Robinson, 1962

*Idiosaura virginensis

_____________________________________________________________________________________