ARGENTINA
LA RIOJA PROVINCE
VICINITY OF CERRO LAS LAJAS
ISCHIGUALSTO FORMATION
CARNIAN STAGE
LOWER LATE TRIASSIC EPOCH
LATE TRIASSIC
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1904
SUPERLEGION: NEODIAPSIDA BENTON, 1985
LEGION: ARCHOSAUROMORPHA HUENE, 1946
SUPERCOHORT: CRUROTARSI SERENO & ARCUCCI, 1990
SUPERORDER: ORNITHOSUCHIMORPHA NOVA
ORDER: ORNITHOSUCHIA BONAPARTE 1971
Family: ORNITHOSUCHIDAE Huene, 1908
*Venaticosuchus rusconii
= Ornithosuchus rusconii
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ARGENTINA
PATAGONIA
LA RIOJA PROVINCE
ISCHIGUALSTO
LOWER ISCHIGUALSTO FORMATION
CARNIAN STAGE
LOWER LATE TRIASSIC EPOCH
LATE TRIASSIC
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: MAMMALIA LINNAEUS, 1758
ORDER: UNDETERMINED
Family: undetermined
Genus nova
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ARGENTINA
LA RIOJA PROVINCE
‘AGUA DE LAS CATAS’
LOWER MIDDLE ISCHIGUALASTO FORMATION
LATE CARNIAN STAGE
LATE TRIASSIC EPOCH
LATE TRIASSIC
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
MAGNORDER: ORNITHISCHIA SEELEY, 1888
SUPERORDER: NEORNITHISCHIA COOPER, 1985
GRANDORDER: ORNITHOPODA MARSH, 1871
MICRORDER: MARGINOCEPHALIA SERENO, 1986
ORDER: HETERODONTOSAURIA COOPER, 1985 (emend)
Family: PISANOSAURIDAE Casamiquela, 1967
*Pisanosaurus mertii
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