WYOMING

NATRONA COUNTY

NEAR WILLOW CREEK

LOWER PART OF THE POPO AGIE FORMATION

LATE CARNIAN STAGE

LOWER LATE TRIASSIC EPOCH

LATE TRIASSIC

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: DIAPSIDA OSBORN, 1904

SUPERLEGION: NEODIAPSIDA BENTON, 1985

LEGION: ARCHOSAUROMORPHA HUENE, 1946

SUPERCOHORT: RHYNOCEPHALIA nova

ORDER: RHYNOCEPHALIA BUTHER, 1867

SUBORDER: RHYNCHOSAUROIDEA GERVAIS, 1889

Family: HYPERODAPEDONTIDAE Lydekker, 1885

Subfamily: HYPERODAPEDONTINAE Lydekker, 1885 (sensu Chatterjee, 1969)

Hyperodapedon sanjuanenesis

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WYOMING

NATRONA COUNTY

CLARK LOCALITY

POPO AGIE MEMBER

OTISCHALKIAN

LATE CARNIAN STAGE

LOWER LATE TRIASSIC EPOCH

LATE TRIASSIC

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: DIAPSIDA OSBORN, 1904

SUPERLEGION: NEODIAPSIDA BENTON, 1985

LEGION: ARCHOSAUROMORPHA HUENE, 1946

SUPERCOHORT: CRUROTARSI SERENO & ARCUCCI, 1990

COHORT: CROCODYLOTARSI BENTON & CLARK, 1988

MAGNORDER: SUCHIA KREBS, 1974

SUPERORDER: PSEUDOSUCHIA ZITTEL 1887-1890

GRANDORDER: RAUISUCHIFORMES PARRISH, 1993

ORDER: RAUISUCHIA Bonaparte, 1984

SUBORDER: RAUISUCHIA BONAPARTE, 1982

Family: TERATOSAURIDAE Cope 1871

Subfamily: TERATOSAURINAE Cope 1871

Tribe: TERATOSAURINI Cope, 1871 (sensu Sennikov, 1995) (emend) from Tribe RAUISUCHINI Huene, 1942

*Heptasuchus clarki

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