SOUTHEASTERN COLORADO

BACA COUNTY

FURNISH CANYON AREA

SUMMERVILE FORMATION

OXFORDIAN-KIMMERIDGIAN STAGE

UPPERMOST MALM EPOCH

LATE JURASSIC

ICHNOSTEM: TETRAPODIPIDA NOVA

ICHNOSUPERCLASS: AMNIOTAIPIDII NOVA

ICHNOCLASS: REPTILIPEDIA VIALOV, 1966

ICHNOSUBCLASS: DIAPSIDIPIDII NOVA

ICHNOSTEM-GROUP: NEODIAPSIDIPEDII NOVA

ICHNOINFRACLASS: NEODIAPSIDIPEDII NOVA

ICHNOSUBDIVISION: ARCHOSAURIPEDIDII NOVA

ICHNOSUPERCOHORT: AVEMETATARSALIPEDII NOVA

ICHNOMAGNORDER: PROLACERTIFORMIPEDIDA NOVA

ICHNOORDER: PTEROSAURIPEDIDA EMEND VIALOV, 1966

Ichnofamily: PTERAICHNIDAE emend Lockley, Logue, Moratalla, Hunt, Schultz & Robinson, 1995

Gen. sp indet.

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COLORADO

NW BACA COUNTY

UNNAMED CREEK

LOWER CENOMANIAN STAGE

UPPER MIDDLE GALLIC SUBEPOCH

LOWERMOST GULF EPOCH

MIDDLE CRETACEOUS
NOTE: WAS LOWEST FORMATION IN THE BENTON GROUP, EARLY LATE CRETACEOUS

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: DIAPSIDA OSBORN, 1904

INFRACLASS: EURYAPSIDA COLBERT, 1945

SUPERORDER: SAUROPTERYGIA OWEN 1860

GRANDORDER: EOSAUROPTERYGIA emend RIEPPEL, 1994

ORDER: PLESIOSAURIA OWEN, 1840 NON BLAINVILLE, 1835

SUBORDER: PLESIOSAURIA OWEN, 1840 NON BLAINVILLE, 1835

INFRAORDER: PLESIOSAUROMORPHA NOVA

EUPLESIOSAURIA O’KEEFE, 2001

Superfamily: ELASMOSAUROIDEA Cope, 1869

Family: ELASMOSAURIDAE Cope, 1869

*Thalassomeodon haningtoni

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COLORADO

BACA COUNTY

EARLY CRETACEOUS

ICHNOSTEM: TETRAPODIPIDA NOVA

ICHNOSUPERCLASS: AMNIOTAIPIDII NOVA

ICHNOCLASS: REPTILIPEDIA VIALOV, 1966

ICHNOSUBCLASS: DIAPSIDIPIDII NOVA

ICHNOSTEM-GROUP: NEODIAPSIDIPEDII NOVA

ICHNOINFRACLASS: NEODIAPSIDIPEDII NOVA

ICHNOSUBDIVISION: ARCHOSAURIPEDIDII NOVA

ICHNOLEGION: DINOSAUROMORPHIPEDA NOVA

ICHNOSUBLEGION: DINOSAURIFORMEIPEDIDII NOVA

ICHNOSUPERCOHORT: DINOSAUROPEDIDA NOVA

ICHNOCOHORT: ORNITHISCHIFORMEIPIDA NOVA

ICHNOMAGNORDER: ORNITHISCHIPIDA NOVA

ICHNOSUPERORDER: NEORNITHISCHIPIDA NOVA

ICHNOGRANDORDER: ORNITHOPODIPDIA NOVA

ICHNOMICRORDER: EUORNITHOPODIPIDA NOVA

ICHNOORDER: IGUANODONTIPIDIA NOVA

ICHNOSUBORDER: ANKYLOPOLLEXIPEDIDA NOVA

ICHNOINFRAORDER: STYRACOSTERNIPIDA NOVA

ICHNOPARVORDER: HADROSAURIFORMIPEDIDA NOVA

Ichnosuperfamily: IGUANODONTIDEA Nova

Ichnofamily: IGUANODONTIPODIDAE emend Vylov, 1988

Gen. sp indet.

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SOUTHEASTERN COLORADO

BACA COUNTY

PICTURE CANYON

DAKOTA GROUP

CENOMANIAN STAGE

UPPER GALLIC SUBEPOCH

LOWERMOST GULF EPOCH

MIDDLE CRETACEOUS

ICHNOSTEM: TETRAPODIPIDA NOVA

ICHNOSUPERCLASS: AMNIOTAIPIDII NOVA

INCHNOCLASS: AVIPEDIA VIALOV, 1966

Incertae sedis

Magnoavipes caneeri

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COLORADO

BACA COUNTY

COMANCHE NATIONAL GRASSLANDS

MEMBER?

MORRISON FORMATION

ZONE?

AGE?

STAGE?

MALM EPOCH

LATE JURASSIC

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

SUPERCOHORT: DINOSAURIA OWEN, 1842

COHORT: ORNITHISCHIFORMES COOPER, 1985

SUPERORDER: SAUROPODOMORPHA HUENE, 1932

GRANDORDER: BRONTOSAURIA OLSHEVSKY, 1991 (emend)

MICRORDER: SAUROPODA MARSH, 1878

ORDER: EUSAUROPODA

SUBORDER: NEOSAUROPODA BONAPARTE, 1986

Family: CAMARASAURIDAE Cope, 1877

Subfamily: CAMARASAURINAE Cope, 1877 (sensu Nopcsa, 1928)

Camarasaurus sp


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SOUTHEASTERN COLORADO

BACA COUNTY

COMANCHE NATIONAL GRASSLAND

LINCOLN LIMESTONE MEMBER

GREENHORN LIMESTONE

MIDDLE CENOMANIAN STAGE

UPPER GALLIC SUBEPOCH

LOWER GULF EPOCH

MIDDLE CRETACEOUS

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: DIAPSIDA OSBORN, 1904

INFRACLASS: EURYAPSIDA COLBERT, 1945

SUPERORDER: SAUROPTERYGIA OWEN 1860

PARVORDER: EOSAUROPTERYGIA emend RIEPPEL, 1994

ORDER: PLESIOSAURIA OWEN, 1840 NON BLAINVILLE, 1835

INCERTAE SEDIS

Gen. sp indet.

SUBORDER: PLESIOSAURIA OWEN, 1840 NON BLAINVILLE, 1835

INFRAORDER: PLESIOSAUROMORPHA NOVA

EUPLESIOSAURIA O’KEEFE, 2001

Superfamily: CRYPTOCLEIDOIDEA Williston, 1925

TRICLEDIA O’KEEFE , 2001

Family: POLYCOTYLIDAE Cope, 1869

Cf. Trinacromerium sp

INCERTAE SEDIS

Gen. sp indet.

INFRAORDER: PLIOSAUROMORPHA NOVA

Superfamily: PLIOSAUROIDEA Seeley, 1874

Family: BRACHAUCHNEIIDAE Williston, 1925

Cf. Brachauchenius sp

INFRACLASS: NEODIAPSIDA BENTON, 1985

LEGION: LEPIDOSAUROMORPHA BENTON, 1983

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

MAGNORDER: SQUAMATA, OPPEL, 1811

INCERTAE SEDIS

Gen. sp indet.

SUPERORDER: LACERTILIA OWEN, 1842

GRANDORDER: SCINCOGEKKONOMORPHA SUKHANOV, 1961

MICRORDER: SCINCOMORPHA CAMP, 1923

ORDER: ANGUIMORPHA FURBRINGER, 1900

SUBORDER: DIPLOGLOSSA COPE, 1864

INFRAORDER: THECAGLOSSA COPE, 1890

PARVORDER: MONSTERSAURIA NORELL & GAO, 1977

Superfamily: VARANOIDEA Gray, 1827 (sensu Camp, 1923)

Family: MOSASAURIDAE Gervais, 1853

INCERTAE SEDIS

Gen. sp indet.

Subfamily: DOLICHOSAURIDAE Gervais, 1852

Tribe: DOLICHOSAURINI Gervais, 1852

Coniasaurus cf C. crassidens

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SOUTHWESTERN COLORADO

BACA COUNTY

COMANCHE NATIONAL GRASSLANDS

MESA RICA SANDSTONE

DAKOTA GROUP

CENOMANIAN STAGE

UPPERMIDDLE GALLIC SUBEPOCH

LOWERMOST GULF EPOCH

LATE EARLY CRETACEOUS

ICHNOSTEM: TETRAPODIPIDA NOVA

ICHNOSUPERCLASS: AMNIOTAIPIDII NOVA

INCHNOCLASS: AVIPEDIA VIALOV, 1966

Incertae sedis

Magnoavipes sp

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COLORADO

BACA COUNTY

ALONG HORSE CREEK ABOUT 12 KM NORTH OF THE SMALL SETTLEMENT OF WALSH

WALSH TRACKSITE

DAKOTA GROUP

ALBIAN STAGE

MIDDLE GALLIC SUBEPOCH

UPPER EARLY CRETACEOUS EPOCH

EARLY CRETACEOUS

ICHNOSTEM: TETRAPODIPIDA NOVA

ICHNOSUPERCLASS: AMNIOTAIPIDII NOVA

ICHNOCLASS: REPTILIPEDIA VIALOV, 1966

ICHNOSUBCLASS: DIAPSIDIPIDII NOVA

ICHNOSTEM-GROUP: NEODIAPSIDIPEDII NOVA

ICHNOINFRACLASS: NEODIAPSIDIPEDII NOVA

ICHNOSUBDIVISION: ARCHOSAURIPEDIDII NOVA

ICHNOINFRADIVISION: CROCODYLOTARSIPEDIDII NOVA

ICHNOSUPERORDER: CROCODYLOMORPHIPEDIDA WALKER, 1968

Incertae sedis

Gen. sp indet.

ICHNOLEGION: DINOSAUROMORPHIPEDA NOVA

ICHNOSUBLEGION: DINOSAURIFORMEIPEDIDII NOVA

ICHNOSUPERCOHORT: DINOSAUROPEDIDA NOVA

ICHNOCOHORT: THEROPODIPEDIA NOVA

Incerate sedis

Gen. sp indet.

ICHNOCOHORT: ORNITHISCHIFORMEIPIDA NOVA

ICHNOMAGNORDER: ORNITHISCHIPIDA NOVA

ICHNOSUPERORDER: EURYOPDIPIDA NOVA

ICHNOGRANDORDER: ANKYLOSAURIFORMIPIDA NOVA

Incertae sedis

Gen. sp indet.


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