Data from: The late Oligocene Xenarthran fauna of Quebrada Fiera (Mendoza, Argentina) and its implications for sloth origins and the diversity of Paleogene Cingulates
François Pujos, Martin R. Ciancio, Analía M. Forasiepi, Michel Pujos, Adriana M. Candela, Barbara Vera, Ana-María Combina & Esperanza Cerdeño
The late Oligocene mammalian fauna of Quebrada Fiera is one of the most diverse of the Deseadan SALMA. We describe its endemic xenarthran assemblage, represented by 13 species, including two stem sloths and 11 armored cingulates. The rare folivoran remains complete the knowledge of Octodontotherium, one of the early known mylodontids, and suggest the existence of a new small non-megalonychid megatherioid Similhapalops nivis gen. et sp. nov. The lumbar vertebrae of Octodontotherium sp. provide the...