Buscar
Mostrando ítems 1-10 de 35
The Evolution of the Cenozoic Terrestrial Mammalian Predator Guild in South America: Competition or Replacement?
(Springer, 2013-01)
South America was isolated from other continents during most of the Cenozoic, developing a very particular mammalian fauna. In contrast to North America, Europe, Asia, Africa, and even Australia, the carnivore adaptative ...
Caudal cranium of thylacosmilus atrox (mammalia, metatheria, sparassodonta), a south american predaceous sabertooth
(American Museum of Natural History, 2019-06)
The caudal cranium of the South American sabertooth Thylacosmilus atrox (Thylacosmilidae, Sparassodonta, Metatheria) is described in detail, with emphasis on the constitution of the walls of the middle ear, cranial ...
Sparassodonta (Metatheria) coprolites from the early-mid Miocene (Santacrucian age) of Patagonia (Argentina) with evidence of exploitation by coprophagous insects
(Society for Sedimentary Geology, 2019-12)
Coprolites are a useful tool to obtain information related to the life history of the producer, trophic interactions, biodiversity, paleoenvironments, and paleoclimate, among other issues. We analyze here a sample of 111 ...
Cladosictis patagonica (Metatheria, Sparassodonta) from the Collón Cura Formation (Middle Miocene), Río Negro, Argentina
(Asociación Paleontológica Argentina, 2021-11)
We studied new specimens of Cladosictis patagonica (Metatheria, Sparassodonta) from the Middle Miocene Collón Cura Formation (Río Negro, Argentina). We reported here this taxon for first time for this stratigraphic unit, ...
Mandible morphology and diet of the South American extinct metatherian predators (Mammalia, Metatheria, Sparassodonta)
(Royal Society of Edinburgh, 2017-02)
Sparassodonta is a diverse group of extinct metatherian predators that include forms with diets ranging from omnivores to hypercarnivores, including potential bone-crushers and sabre-Tooth specialised species. Most of the ...
Insights into the Neotropics prior to the Great American Biotic Interchange: New evidence of mammalian predators from the Miocene of Northern Colombia
(Society of Vertebrate Paleontology, 2016-01)
A new species of Sparassodonta (Mammalia, Metatheria), Lycopsis padillai, sp. Nov., is described on the basis of a partial left maxilla with M1-M4 and fragments of lacrimal and jugal. The material comes from the early to ...
Australohyaena antiqua (Mammalia, Metatheria, Sparassodonta), a large predator from the Late Oligocene of Patagonia
(Cambridge University Press, 2015-05)
An almost complete skull of Australohyaena antiqua (Ameghino), from the Late Oligocene (Deseadan SALMA) of Cabeza Blanca, Chubut Province, Argentina is described and analysed. For more than a century, this species was ...
Form and function within a phylogenetic framework: Locomotory habits of extant predators and some Miocene Sparassodonta (Metatheria)
(Wiley Blackwell Publishing, Inc, 2012-05)
In this study, we analysed locomotory habits in extant predators and Sparassodonta species through geometric morphometric techniques and discriminant analyses of the distal humerus in anterior view, proximal ulna in lateral ...
The stapes of stem and extinct Marsupialia: implications for the ancestral condition
(Society of Vertebrate Paleontology, 2021-06)
This paper describes, for the first time, the stapedes of several non-marsupial species of the metatherian clade Sparassodonta (Sipalocyon gracilis, Arctodictis sinclairi, and Borhyaena tuberata) which were fortuitously ...