publication . Other literature type . Article . 2016

Ancient mitochondrial DNA reveals convergent evolution of giant short-faced bears (Tremarctinae) in North and South America.

Kieren J. Mitchell; Sarah C. Bray; Pere Bover; Leopoldo Soibelzon; Blaine W. Schubert; Francisco Prevosti; Alfredo Prieto; Fabiana Martin; Jeremy J. Austin; Alan Cooper;
  • Published: 19 Apr 2016
  • Publisher: Biology letters
Abstract
The Tremarctinae are a subfamily of bears endemic to the New World, including two of the largest terrestrial mammalian carnivores that have ever lived: the giant, short-faced bears Arctodus simus from North America and Arctotherium angustidens from South America (greater than or equal to 1000 kg). Arctotherium angustidens became extinct during the Early Pleistocene, whereas Arctodus simus went extinct at the very end of the Pleistocene. The only living tremarctine is the spectacled bear (Tremarctos ornatus), a largely herbivorous bear that is today only found in South America. The relationships among the spectacled bears (Tremarctos), South American short-faced ...
Subjects
free text keywords: Ursidae, great American biotic interchange, molecular dating, palaeontology, Phylogeny, Agricultural and Biological Sciences (miscellaneous), General Agricultural and Biological Sciences, Biology, Paleontology, Tremarctinae, biology.organism_classification, Ancient DNA, Ecology, Megafauna, Pleistocene, Tremarctos, Arctotherium, Tremarctos ornatus, Carnivore
Abstract
The Tremarctinae are a subfamily of bears endemic to the New World, including two of the largest terrestrial mammalian carnivores that have ever lived: the giant, short-faced bears Arctodus simus from North America and Arctotherium angustidens from South America (greater than or equal to 1000 kg). Arctotherium angustidens became extinct during the Early Pleistocene, whereas Arctodus simus went extinct at the very end of the Pleistocene. The only living tremarctine is the spectacled bear (Tremarctos ornatus), a largely herbivorous bear that is today only found in South America. The relationships among the spectacled bears (Tremarctos), South American short-faced ...
Subjects
free text keywords: Ursidae, great American biotic interchange, molecular dating, palaeontology, Phylogeny, Agricultural and Biological Sciences (miscellaneous), General Agricultural and Biological Sciences, Biology, Paleontology, Tremarctinae, biology.organism_classification, Ancient DNA, Ecology, Megafauna, Pleistocene, Tremarctos, Arctotherium, Tremarctos ornatus, Carnivore
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