Sexual dimorphism (SD) is extremely common in species that have reproductive roles
segregated into separate sexes, and it has been recognized in several mammalian …

ABSTRACT Our understanding of South American megatheriine ground sloths was
traditionally based largely on abundant material from Brazil and Argentina, mainly because …

The current fossil record of squamates across the Eocene/Oligocene boundary in central
North America is perplexing in that it shows a marked increase in species richness in …

—Megalonychid sloths are well known from the Quaternary of many West Indian islands,
and some isolated remains date back as far as the early Oligocene. Phylogenetic …

We provide new and revised identifications of mammals from the early middle Miocene
(Langhian age, Colloncuran South American Land Mammal Age [SALMA]) of Cerdas …

Sloths are among the most characteristic elements of the Cainozoic of South America and
are represented, during the Pleistocene, by approximately nine genera of gigantic ground …

Advancements in ancient DNA analyses now permit comparative molecular and
morphological studies of extinct animal dung commonly preserved in caves of semiarid …

Among the several positive developments in xenarthran studies over the past 20 years have
been the training of and active participation by many new researchers, prospecting of …

Abstract Within the subfamily Scelidotheriinae, Valgipes bucklandi represents one of the
least known taxa due to its scarce records and material found so far. This Pleistocene …

Extinct terrestrial sloths are common elements of the late Cenozoic South American fossil
record. Among them, Mylodontinae species were particularly abundant in the Americas …