CANADA

ALBERTA PROVINCE

PAINTEARTH COUNTY

NEAR BROWNFIELD

ALONG THE BANK OF BATTLE RIVER

LATE 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

AVETHEROPODA PAUL, 2002

SUBORDER: COELURIA MARSH, 1881

Superfamily: TYRANNOSAUROIDEA Osborn, 1906 (sensu Bonaparte et. al., 1990)

Family: TYRANNOSAURIDAE Osborn, 1906

Subfamily: ALBERTOSAURINAE Currie, Hurum & Sabath, 2003

Albertosaurus sarcophagus

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CANADA

ALBERTA PROVINCE

PAINTEARTH COUNTY

PAINTEARTH CREEK

HORSESHOE CANYON FORMATION

EDMONTON GROUP

EDMONTONIAN AGE

LOWER MAASTRICHTIAN STAGE

UPPER SENONIAN SUBEPOCH

UPPER GULF EPOCH

LATE CRETACEOUS

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: MAMMALIA LINNAEUS, 1758

SUBCLASS: PROTOTHERIA GILL, 1872

INFRACLASS: TRECHNOTHERIA MCKENNA, 1975

LEGION: CLADOTHERIA MCKENNA, 1975

SUBLEGION: ZATHERIA MCKENNA, 1975

INFRALEGION: TRIBOSPHENIDA (MCKENNA, 1975) MCKENNA & BELL, 1997

SUPERCOHORT: THERIA (PARKER & HASWELL, 1987) MCKENNA & BELL, 1997

COHORT: MARSUPIALIA (ILLIGER, 1811) MCKENNA & BELL, 1997

ORDER: STAGODONTIA ARCHER, 1984

Family: STAGODONTIDAE Marsh, 1889

Didelphodon coyi

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