COLORADO

EAGLE COUNTY

EAGLE BASIN

N OF DOTSERO

DERBY JUNCTION LOCALITY

DMNH 692

CHINLE FORMATION

CARNIAN-LOWER NORIAN STAGE

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

SUPERORDER: PARASUCHIMORPHA NOVA

ORDER: PARASUCHIA HUXLEY, 1875

Incertae sedis

Genus et sp indet.

MAGNORDER: SUCHIA KREBS, 1974

SUPERORDER: PSEUDOSUCHIA ZITTEL 1887-1890

Incertae sedis

Gen. sp indet.

Genus: Nova Heavily armoured archosaur

GRANDORDER: RAUISUCHIFORMES PARRISH, 1993

ORDER: RAUISUCHIA Bonaparte, 1984

SUBORDER: RAUISUCHIA BONAPARTE, 1982

Family: POPOSAURIDAE Nopcsa, 1928

An unusual poposaurid

ORDER: AETOSAURIA NICHOLSON & LYDEKKER, 1889

Family: STAGONOLEPIDIDAE Lydekker, 1887

Subfamily: AETOSAURINAE Cope, 1889 (sensu Heckert & Lucas, 2000)

Aetosaurus sp

SUPERORDER: CROCODYLOMORPHA WALKER, 1968

ORDER: INCERTAE SEDIS

SUBORDER: SPHENOSUCHIA BONAPARTE, 1971

Family: SPHENOSUCHIDAE Huene, 1922

cf. Hesperosuchus

SUBLEGION: DINOSAUROMORPHA BENTON & NORMAN IN BENTON, 1985

INFRALEGION: DINOSAURIFORMES NOVAS, 1992

Family: LEWISUCHIDAE PAUL, 1988 emend Olshevsky, 1991

Kwanasaurus parkeri

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COLORADO

EAGLE COUNTY

DMNH LOCALITY 692

LOWER-MIDDLE NORIAN STAGE

LATE TRIASSIC EPOCH

LATE TRIASSIC

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: AMPHIBIA LINNAEUS, 1758

SUBCLASS: LISSAMPHIBIA, HAECKEL, 1866?

ORDER: GYMNOPHIONA RAFINESQUE, 1814

Incertae sedis

*Chinlestegophis jenkinsi

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COLORADO

EAGLE COUNTY

EAGLE BASIN

NEAR NEW CASTLE

MAIN ELK CREEK

DMNH LOCALITY 1306

CARNIAN-LOWER NORIAN STAGE

LATE TRIASSIC EPOCH

LATE TRIASSIC

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: PARAREPTILIA OLSON 1947

INFRACLASS: SAUROPSIDA HUXLEY, 1864

ORDER: PROCOLOPHONOMORPHA ROMER, 1964

SUBORDER: PROCOLPHOMORPHA SEELEY, 1888

Family: PROCOLOPHONIDAE, Seeley, 1888

Subfamily: LEPTOPLEURONIAE Ivakhenko, 1982

Libognathus sheddi

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: AETOSAURIA NICHOLSON & LYDEKKER, 1889

Family: STAGONOLEPIDIDAE Lydekker, 1887

Subfamily: AETOSAURINAE Cope, 1889 (sensu Heckert & Lucas, 2000)

Rioarribosuchus

SUBLEGION: DINOSAUROMORPHA BENTON & NORMAN IN BENTON, 1985

Family: LAGERPETONIDAE Arcucci, 1987

Dromomeron romeri

INFRALEGION: DINOSAURIFORMES NOVAS, 1992

Incertae sedis

Gen. sp indet.

Family: LEWISUCHIDAE PAUL, 1988 emend Olshevsky, 1991

Kwanasaurus parkeri

Gen. sp indet.

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COLORADO

EAGLE COUNTY

EAGLE BASIN

NEAR NEW CASTLE

MAIN ELK CREEK

DMNH LOCALITY 1306

CARNIAN-LOWER NORIAN STAGE

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

SUBLEGION: DINOSAUROMORPHA BENTON & NORMAN IN BENTON, 1985

Family: LAGERPETONIDAE Arcucci, 1987

Dromomeron romeri

INFRALEGION: DINOSAURIFORMES NOVAS, 1992

Incertae sedis

Gen. sp indet.

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COLORADO

EAGLE COUNTY

EAGLE BASIN

NEAR NEW CASTLE

LOST BOB

DMNH LOCALITY 3980

CARNIAN-LOWER NORIAN STAGE

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

SUBLEGION: DINOSAUROMORPHA BENTON & NORMAN IN BENTON, 1985

INFRALEGION: DINOSAURIFORMES NOVAS, 1992

Incertae sedis

Gen. sp indet.

Family: LEWISUCHIDAE PAUL, 1988 emend Olshevsky, 1991

Kwanasaurus parkeri

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COLORADO

EAGLE COUNTY

EAGLE BASIN

NEAR NEW CASTLE

LOST BOB EAST

DMNH LOCALITY 4629

CARNIAN-LOWER NORIAN STAGE

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

SUBLEGION: DINOSAUROMORPHA BENTON & NORMAN IN BENTON, 1985

INFRALEGION: DINOSAURIFORMES NOVAS, 1992

Incertae sedis

Gen. sp indet.

Family: LEWISUCHIDAE PAUL, 1988 emend Olshevsky, 1991

Kwanasaurus parkeri

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COLORADO

EAGLE COUNTY

EAGLE BASIN

NEAR NEW CASTLE

BURROW CLIFF

DMNH LOCALITY 4340

CARNIAN-LOWER NORIAN STAGE

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

SUBLEGION: DINOSAUROMORPHA BENTON & NORMAN IN BENTON, 1985

INFRALEGION: DINOSAURIFORMES NOVAS, 1992

Family: LEWISUCHIDAE PAUL, 1988 emend Olshevsky, 1991

*Kwanasaurus parkeri

 

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COLORADO

EAGLE COUNTY

EAGLE BASIN

NEAR NEW CASTLE

MAIN ELK CREEK

DMNH LOCALITY 1306

CARNIAN-LOWER NORIAN STAGE

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

SUBLEGION: DINOSAUROMORPHA BENTON & NORMAN IN BENTON, 1985

Family: LAGERPETONIDAE Arcucci, 1987

Dromomeron romeri

INFRALEGION: DINOSAURIFORMES NOVAS, 1992

Family: LEWISUCHIDAE PAUL, 1988 emend Olshevsky, 1991

Kwanasaurus parkeri

Gen. sp indet.

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COLORADO

EAGLE COUNTY

EAGLE BASIN

NEAR NEW CASTLE

SHUVOSAUR SURPRISE

DMNH LOCALITY 3492

CARNIAN-LOWER NORIAN STAGE

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

SUBLEGION: DINOSAUROMORPHA BENTON & NORMAN IN BENTON, 1985

INFRALEGION: DINOSAURIFORMES NOVAS, 1992

Family: LEWISUCHIDAE PAUL, 1988 emend Olshevsky, 1991

Kwanasaurus parkeri

Gen. sp indet.

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