SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: PARAREPTILIA OLSON 1947

INFRACLASS: SAUROPSIDA HUXLEY, 1864

ORDER: COTYLOSAURIA COPE, 1880

SUBORDER: DIADECTOMORPHA Watson, 1917

Family: TSEAJAIIDAE Vaughn, 1964

Tseajaia campi

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: PARAREPTILIA OLSON 1947

INFRACLASS: SAUROPSIDA HUXLEY, 1864

ORDER: COTYLOSAURIA COPE, 1880

SUBORDER: DIADECTOMORPHA Watson, 1917

Family: TSEAJAIIDAE Vaughn, 1964

*Tseajaia campi

____________________________________________________________________________________

UTAH

SAN JUAN COUNTY

NEAR THE INTERSECTION OF SECS, 17, 18, 19, AND 20, T43S, R17E

LOWER ORGAN ROCK SHALE

LOWER LEONARDIAN SERIES

LOWER ARTINSKIAN STAGE

LOWER ROTLIEGENDES EPOCH

EARLY PERMIAN

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: AMPHIBIA LINNAEUS, 1758

NEOTETRAPODA

SUBCLASS: REPTILIOMORPHA SAVE-SODERBERGH, 1934

ORDER: SEYMOURIAMORPHA WATSON, 1917

SUBORDER: SEYMOURIDA TATARINOV, 1971

Superfamily: SEYMOURIOIDEA Williston, 1911 (sensu Tatarinov, 1971)

Family: SEYMOURIIDAE Williston, 1911

*Seymouria sanjuanensis

UTAH

SAN JUAN COUNTY

SW 1/4, SE 1/4, SEC 24, T43S, R16E

LOWER ORANGE ROCK SHALE

LOWER LEONARDIAN SERIES

LOWER ARTINSKIAN STAGE

LOWER ROTLIEGENDES EPOCH

EARLY PERMIAN

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: AMPHIBIA LINNAEUS, 1758

NEOTETRAPODA

SUBCLASS: REPTILIOMORPHA SAVE-SODERBERGH, 1934

ORDER: SEYMOURIAMORPHA WATSON, 1917

SUBORDER: SEYMOURIDA TATARINOV, 1971

Superfamily: SEYMOURIOIDEA Williston, 1911 (sensu Tatarinov, 1971)

Family: SEYMOURIIDAE Williston, 1911

Seymouria sanjuanensis

____________________________________________________________________________________