South America was a remote island continent throughout the greatest part of the Cenozoic.
Such a “splendid isolation”(sensu Simpson, 1980) drove natural experiments in the organic …

The Pleistocene fossil sloth Australonyx aquae De Iuliis, Cartelle, and Pujos, 2009
(Mammalia, Xenarthra, Megalonychidae) was described from the intertropical region of …

The aim of this contribution is to describe a femur (MCRS 199) assigned to Nothrotheriops
sp. from the Late Pleistocene of Santa Fe Province (Argentina), and discuss the implications …

A well-preserved fetus of the extinct nothrotheriid sloth Nothrotherium maquinense,
recovered in situ within the skeletal remains of its mother from the karstic cave Toca da Boa …

The living tree sloths Choloepus and Bradypus are the only remaining members of Folivora,
a major xenarthran radiation that occupied a wide range of habitats in many parts of the …

Extinct scelidotheriine sloths are among the most peculiar fossil mammals from South
America. In recent decades, the external cranial anatomy of Pleistocene scelidotheres such …

Abstract New mylodontine (Xenarthra, Pilosa) sloth remains from the late Pleistocene tar
seep localities of Corralito (Ecuador) and Talara (Peru) are described, and the taxonomic …

Fossil remains of extinct terrestrial sloths have been discovered in numerous localities
throughout the Americas, but knowledge of these animals remains poor in the tropical …

A new genus and species of sloth (Eionaletherium tanycnemius gen. et sp. nov.) recently
collected from the Late Miocene Urumaco Formation, Venezuela (northern South America) …

Here we describe two new megalonychid sloths from the late Miocene of the Urumaco
Formation (Falcón State, Venezuela), Urumacocnus urbanii gen. et. sp. nov. and …