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Ecological Diversity in South American Mammals: Their Geographical Distribution Shows Variable Associations with Phylogenetic Diversity and Does Not Follow the Latitudinal Richness Gradient
(Public Library Of Science, 2015-06)
The extent to which the latitudinal gradient in species richness may be paralleled by a similar gradient of increasing functional or phylogenetic diversity is a matter of controversy. We evaluated whether taxonomic richness ...
Ulnar articular surface 3-D landmarks and ecomorphology of small mammals: A case study of two early Miocene typotheres (Notoungulata) from Patagonia
(Royal Society of Edinburgh, 2017-02)
Articular surfaces reflect the relative movements between adjacent bones, and the ones involved in the elbow joint provide information about forelimb movements and may be useful for making inferences about the substrate ...
First record of Procyon cancrivorus (G. Cuvier, 1798) (Carnivora, Procyonidae) in stratigraphic context in the Late Pleistocene of Brazil
(Elsevier, 2013-08)
Although five genera of procyonids are currently present in South America, only two of the extant genera, Procyon and Nasua are represented in the South American fossil record. A recent discovery of a procyonid lower second ...
Extinctions in near time: new radiocarbon dates point to a very recent disappearance of the South American fox Dusicyon avus (Carnivora: Canidae)
(Wiley Blackwell Publishing, Inc, 2015-11)
Almost all large carnivorans (Carnivora; > 20 kg) that inhabited South America became extinct around the Late Pleistocene–Early Holocene transition. Two exceptions were species of coyote-sized Dusicyon, one insular (D. ...
Adaptations to a semiaquatic lifestyle in the external ear of southern pinnipeds (Otariidae and Phocidae, Carnivora): Morphological evidences
(Elsevier Gmbh, 2019-04)
Pinnipeds are semiaquatic carnivorans that spend most of their lives in water and use coastal terrestrial, or ice pack, environments to breed, molt and rest. Certain characteristics of the ear have been linked to ecological ...
Body mass estimation for †Cyonasua (Procyonidae, Carnivora) and related taxa based on postcranial skeleton
(Taylor & Francis Ltd, 2018-05)
Procyonidae were the first northern placental carnivorans that reached the Neotropics. They are represented by two extinct genera: †Cyonasua and †Chapalmalania (late Miocene–early Pleistocene). Postcranial elements are ...
The Forelimb of Early Miocene Sloths (Mammalia, Xenarthra, Folivora): Morphometrics and Functional Implications for Substrate Preferences
(Springer, 2012-09)
Early Miocene sloths are represented by a diversity of forms ranging from 38 to 95 kg. Their forelimb bones differ in shape from those of their closest living relatives (less than 10 kg), Bradypus and Choloepus. Such ...
First Record of Carnivora (Puma Lineage, Felidae) in the Uquía Formation (Late Pliocene-Early Pleistocene, NW Argentina) and Its Significance in the Great American Biotic Interchange
(Asociación Paleontológica Argentina, 2019-04)
The fossil record of the puma lineage in America is sparse, and doubts have been raised about the origin, radiation, and migration events of this lineage. In this study, we present results of comparative and quantitative ...
The Great American Biotic Interchange revisited: a new perspective from the stable isotope record of Argentine Pampas fossil mammals
(Nature Research, 2020-01-31)
This study aims at assessing resource and habitat use, niche occupation and trophic interactions from a stable isotope perspective on fossil mammals from the Argentine Pampas during the Great American Biotic Interchange ...