ARGENTINA

PATAGONIA

NEUQUEN PROVINCE

LOS MOLLES

LOS MOLLES FORMATION

TOARCIAN STAGE

LATE LIAS EPOCH

EARLY JURASSIC-BAJOCIAN STAGE

LOWER DOGGER EPOCH

LOWER MIDDLE JURASSIC

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

CLADE NAME: GENASAURIA SERENO, 1986

SUPERORDER: NEORNITHISCHIA COOPER, 1985

GRANDORDER: ORNITHOPODA MARSH, 1871

INCERTAE SEDIS

*Isaberrysaura mollensis

_____________________________________________________________________________________

ARGENTINA

PATAGONIA

NEUQUEN PROVINCE

CHACALCO

LOS MOLLES FORMATION

CUYO GROUP

EMILEIA GIEBELI, EMILEIA MULTIFORMES SUBZONE

LOWER BAJOCIAN STAGE

LOWER MIDDLE DOGGER EPOCH

LATE MIDDLE JURASSIC

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: DIAPSIDA OSBORN, 1904

INFRACLASS: EURYAPSIDA COLBERT, 1945

SUPERORDER: SAUROPTERYGIA OWEN, 1860

GRANDORDER: EOSAUROPTERYGIA emend RIEPPEL, 1994

ORDER: PLESIOSAURIA OWEN, 1840 NON BLAINVILLE, 1835

SUBORDER: PLESIOSAURIA OWEN, 1840 NON BLAINVILLE, 1835

INFRAORDER: PLIOSAUROMORPHA NOVA

Superfamily: PLIOSAUROIDEA Seeley, 1874

Family: PLIOSAURIDAE Seeley, 1874

*Maresaurus coccai

_____________________________________________________________________________________