Abstract Uppermost Cretaceous (Campanian-Maastrichtian) large ornithopod tracks are
scarce in Gondwana. This record is limited to few citations in the northern Argentina, Peru …

The giant tortoises of the Galápagos Archipelago influenced Darwin's early thinking on
transmutation and now constitute a famous example of island-based speciation and …

La Venta es una de las pocas localidades fosiliferas de Sudamérica que ha provisto una
diversidad tan grande de Cingulata. Todos los armadillos y gliptodontes (Xenarthra …

Two new Mesozoic gastropod species, provisionally attributed to the minute (height< 5 mm)
coiled neomphalid genus Retiskenea?, are described from three geographically isolated …

A large and diverse collection of vertebrate remains from the Campanian-Maastrichtian
Allen Formation (Malargüe Group) at the Bajo deSanta Rosalocality (Río Negro Province …

Abstract Fossil arthropods from Upper Triassic outcrops along the Biobío river, south-central
Chile, are reported in this paper. Two species of the order Coleoptera, Ademosyne sp., and …

Multivariate statistical analyses are used to distinguish species in the genera Montastraea
and Solenastrea through a continuous Neogene sequence (five Ma time interval) in the …

The systematics, and the geographic and stratigraphic distribution of the South American
fossil taxa of Tremarctinae (Carnivora, Ursidae) are reviewed and discussed. New …

Gastropod faunas from the Early Jurassic (Late Pliensbachian–Early Toarcian) marine
deposits of Chubut Province, Argentina, are described from Lomas Occidentales, Cerro La …

Twenty-eight bivalve species (two new: Trigonia saltillensis and Liopistha coahuilensis),
seven cephalopod species, 13 gastropod species (two new: Cerithium pueblensis and …