MARYLAND

ARUNDEL FORMATION

POTOMAC GROUP

UPPER APTIAN-LOWER ALBIAN STAGE

MIDDLE GALLIC SUBEPOCH

UPPER EARLY CRETACEOUS EPOCH

EARLY CRETACEOUS

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: THEROPODA EMEND MARSH, 1881

AVEPODA PAUL, 2002

SUPERORDER: NEOTHEROPODA BAKKER, 1986

GRANDORDER: TETANURAE GAUTHIER, 1986

MICRORDER: COELUROSAURIA HUENE, 1914

ORDER: MANIRAPTORFORMES HOLTZ, 1996

SUBORDER: ORNITHOMIMOSAURIA BARSBOLD, 1976

Family: ORNITHOMIMIDAE Marsh, 1890

Incertae sedis

non Archaeornithomimus? affinis
= Coelosaurus affinis
= Ornithomimus affinis
= Ornithomimus (Archaeornithomimus) affinis

_____________________________________________________________________________________