NORTHEASTERN BRAZIL
PARAIBA STATE
TRIUNFO COUNTY
TRIUNFO BASIN
AREIAS FARM
RIO PIRANHAS FORMATION
HAUTERIVIAN STAGE
UPPER NEOCOMIAN SUBEPOCH-BARREMIAN STAGE
LOWER GALLIC SUBEPOCH
MIDDLE 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: ORNITHISCHIFORMES COOPER, 1985
SUPERORDER: SAUROPODOMORPHA HUENE, 1932
GRANDORDER: BRONTOSAURIA OLSHEVSKY, 1991 (emend)
MICRORDER: SAUROPODA MARSH, 1878
ORDER: EUSAUROPODA
SUBORDER: NEOSAUROPODA BONAPARTE, 1986
INFRAORDER: MACRONARIA WILSON & SERENO, 1998
PARVORDER: TITANOSAURIFORMES SALGADO ET AL, 1997
Superfamily: TITANOSAUROIDEA Lydekker, 1885 (sensu Upchurch, 1999)
TITANOSAURIA BONAPARTE & CORIA, 1933
*Triufosaurus leonardii
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NORTHEASTERN BRAZIL
PARAIBA STATE
SOUSA MUNICIPALITY
LAGOA DO FORNO SITE
RIO PIRANHAS FORMATION
HAUTERIVIAN STAGE
UPPER NEOCOMIAN SUBEPOCH-BARREMIAN STAGE
LOWER GALLIC SUBEPOCH
MIDDLE 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: ORNITHISCHIFORMES COOPER, 1985
SUPERORDER: SAUROPODOMORPHA HUENE, 1932
GRANDORDER: BRONTOSAURIA OLSHEVSKY, 1991 (emend)
MICRORDER: SAUROPODA MARSH, 1878
ORDER: EUSAUROPODA
SUBORDER: NEOSAUROPODA BONAPARTE, 1986
INFRAORDER: MACRONARIA WILSON & SERENO, 1998
PARVORDER: TITANOSAURIFORMES SALGADO ET AL, 1997
Superfamily: TITANOSAUROIDEA Lydekker, 1885 (sensu Upchurch, 1999)
Family: TITANOSAURIDAE Lydekker, 1885
Gen. sp indet.
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