WEST-CENTRAL ARGENTINA

PATAGONIA

NEUQUEN BASIN

60 KM NORTH OF ZAPALA

BAJADA DEL AGRIO LOCALITY, ON ROAD 40

AGRIO FORMATION

WEAVERICERAS VACAENSE ZONE

LOWER HAUTERIVIAN STAGE

NEOCOMIAN SUBEPOCH

LOWER EARLY CRETACEOUS EPOCH

EARLY CRETACEOUS

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: REPTILIA LAURENTI, 1768

SUBCLASS: DIAPSIDA OSBORN, 1904

INFRACLASS: EURYAPSIDA COLBERT, 1945

SUPERORDER: SAUROPTERYGIA OWEN 1860

PARVORDER: EOSAUROPTERYGIA emend RIEPPEL, 1994

ORDER: PLESIOSAURIA OWEN, 1840 NON BLAINVILLE, 1835

SUBORDER: PLESIOSAURIA OWEN, 1840 NON BLAINVILLE, 1835

INFRAORDER: PLESIOSAUROMORPHA NOVA

EUPLESIOSAURIA O’KEEFE, 2001

Superfamily: ELASMOSAUROIDEA nova

Family: ELASMOSAURIDAE Cope, 1869

Incertae sedis

Gen. sp indet.

_____________________________________________________________________________________