UTAH

GREEN RIVER VALLEY

CANYON AT SHEEP CREEK

SUNDANCE FORMATION

MIDDLE OR 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

SUPERCOHORT: CRUROTARSI SERENO & ARCUCCI, 1990

COHORT: CROCODYLOTARSI BENTON & CLARK, 1988

MAGNORDER: SUCHIA KREBS, 1974

SUPERORDER: CROCODYLOMORPHA WALKER, 1968

GRANDORDER: CROCODILIFORMES HAY, 1930

MICRORDER: MESOEUROCROCODYLIA WHETSTONE & WHYBROW, 1983

ORDER: MESOSUCHIA EMEND HUXLEY, 1875

PARVORDER: METASUCHIA BENTON & CLARK, 1988

INFRAORDER: METAMESOSUCHIA HULKE, 1878

NEOSUCHIA CLARK, IN BENTON & CLARK, 1988

Family: GONIOPHOLIDIDAE Cope, 1875

non Diplosaurus, *D. nanus

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UTAH

IN THE AREA OF MOAB

ENTRADA-SUMMERVILLE BOUNDARY SEQUENCE (J-3)

MIDDLE JURASSIC

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: THEROPODIPEDIA NOVA

Incerate sedis

Gen. sp indet.

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