CHINA

INNER MONGOLIA (NEI MONGOL)

ORDOS (SHAAN-GAN-NING) BASIN

TSONDOLEIN-KHUDUK

ULANSUHAI FORMATION (TSONDOLEIN KHUDUK BEDS)

TURONIAN STAGE

LATE GALLIC SUBEPOCH

EARLY GULF EPOCH

LATE CRETACEOUS

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: DIAPSIDA OSBORN, 1903

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

MAGNORDER: ORNITHISCHIA SEELEY, 1888

SUPERORDER: NEORNITHISCHIA COOPER, 1985

GRANDORDER: ORNITHOPODA MARSH, 1871

MICRORDER: MARGINOCEPHALIA SERENO, 1986

ORDER: PACHYCEPHALOSAURIA MARYANSKA & OSMOLSKA, 1974

SUBORDER: DOMOCEPHALINIA SERENO, 1986

INFRAORDER: PACHYCEPHALOSAURIA (MARYANSKA & OSMOLSKA, 1974) COOPER, 1985

Family: PACHYCEPHALOSAURIDAE Sternberg, 1945

Subfamily: PACHYCEPHALOSAURINAE Sereno, 1998

*Sinocephale bexelli
= Tylocephale? bexelli
= Troodon bexelli
= Stegoceras bexelli

ORDER: CERATOPIA MARSH, 1890

SUBORDER: NEOCERATOPIA SERENO, 1986

INFRAORDER: CORONOSAURIA SERENO, 1986

Family: PROTOCERATOPIDAE Granger & Gregory, 1923

Incertae sedis

*Microceratus gobiensis
= Microceratops gobiensi

_____________________________________________________________________________________