NEW MEXICO

GUADALUPE COUNTY

BULL CANYON AND PUNTA DE GALLEGOS

TIDWELL MEMBER

MORRISON FORMATION

ZONE 1

COMOBLUFFIAN AGE

LOWERMOST KIMMERIDGIAN STAGE

MIDDLE 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

Incertae sedis

Gen. sp indet.

COHORT: ORNITHISCHIFORMES COOPER, 1985

MAGNORDER: ORNITHISCHIA SEELEY, 1888

SUPERORDER: EURYOPDA SERENO, 1986

GRANDORDER: STEGOSAUROMORPHA COOPER, 1985 (EMEND)

ORDER: STEGOSAURIA MARSH, 1877

Family: STEGOSAURIDAE Marsh, 1877

Subfamily: STEGOSAURINAE Marsh, 1877 (sensu ABEL, 1919)

Stegosaurus sp

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