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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