TEXAS

BREWSTER COUNTY

NORTH OF STUDY BUTTE

TEN BILLS RANCH

AGUJA FORMATION

CAMPANIAN STAGE

SENONIAN SUBEPOCH

UPPER GULF EPOCH

LATE CRETACEOUS

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: CHELONOMORPHA KUHN, 1960

SUPERCOHORT: TESTUDINES LINNAEUS, 1758

COHORT: CASICHELYDIA emend GAFFNEY & MEYLAN, 1988

MAGNORDER: PLEURODIRA GAFFNEY & MEYLAN, 1988

ORDER: PLEURODIRIDA COPE, 1864

SUBORDER: EUPLEURODIRA GAFFNEY & MEYLAN, 1988

Hyperfamily: PODOCNEMIDERA Cope, 1868

Magnafamily: PODOCNEMIDOIDEA Cope, 1868

Superfamily: BOTHREMYDINURA Baur, 1891

Epifamily: BOTHERMYDINURA Baur, 1891

Family: BOTHREMYDIDAE Baur, 1891

Subfamily: BOTHREMYDINAE Baur, 1891

Infrafamily: TAPHROSPHYINI Gaffney, Tong & Meylan, 2006

Tribe: TAPHROSPHYINA Gaffney, Tong & Meylan, 2006

*Chupacabrachelys complexus


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TEXAS

BREWSTER COUNTY

WESTERN PART OF THE BIG BEND REGION

PEN FORMATION

UPPER SANTONIAN-LOWER CAMPANIAN STAGE

SENONIAIN SUBEPOCH

GULF EPOCH

LATE CRETACEOUS

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: DIAPSIDA OSBORN, 1903

INFRACLASS: NEODIAPSIDA BENTON, 1985

LEGION: LEPIDOSAUROMORPHA BENTON, 1983

SUBLEGION: LEPIDOSAURIA HAECKEL, 1866 (DUMERIL & BIBRON, 1839)

MAGNORDER: SQUAMATA, OPPEL, 1811

SUPERORDER: LACERTILIA OWEN, 1842

GRANDORDER: SCINCOGEKKONOMORPHA SUKHANOV, 1961

MICRORDER: SCINCOMORPHA CAMP, 1923

ORDER: ANGUIMORPHA FURBRINGER, 1900

SUBORDER: DIPLOGLOSSA COPE, 1864

INFRAORDER: THECAGLOSSA COPE, 1890

PARVORDER: MONSTERSAURIA NORELL & GAO, 1977

Superfamily: VARANOIDEA Gray, 1827 (sensu Camp, 1923)

Family: MOSASAURIDAE Gervais, 1853

Subfamily: HALISAURINAE Bardet, Pereda Suberbiola, Iarochene, Bouya & Amaghzaz, 2005

Gen. sp indet.

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