ARGENTINA

RIO NEGRO PROVINCE

EASTERN MARGIN OF THE ARTIFICAL LAKE EMBALSE EZEUIEL RAMOS MEXIA

EL GIGANTE

BASAL CANDERLOS FORMATION

RIO LIMAY SUBGROUP

NEUQEUN GROUP

UPPERMOST ALBIAN-LOWERMOST CENOMANIAN STAGE

UPPER GALLIC SUBEPOCH

LOWEST GULF EPOCH

LATE EARLY TO EARLY MIDDLE CRETACEOUS

STEM: TETRAPODA GOODRICH, 1930

SUPERCLASS: AMNIOTA HAECKEL, 1866

CLASS: AMPHIBIA LINNAEUS, 1758

SUBCLASS: LISSAMPHIBIA, HAECKEL, 1866?

SUPERORDER: SALIENTIA LAURENTI, 1768

ORDER: ANURA RAFINESQUE, 1815

SUBORDER: MESOBATRACHIA LAURENT, 1979

Superfamily: PIPOIDEA Fitzinger, 1843

Family: PIPIDAE Gray, 1825

Incertae sedis

*Avitabatrachus uliana

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