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Kretzoiarctos gen. nov., the Oldest Member of the Giant Panda Clade

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Kretzoiarctos gen. nov., the Oldest Member of the Giant Panda Clade

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dc.contributor.author Abella Pérez, Juan es_ES
dc.contributor.author Alba, David M. es_ES
dc.contributor.author Robles, Josep M. es_ES
dc.contributor.author Valenciano, Alberto es_ES
dc.contributor.author Rotgers, Cheyenn es_ES
dc.contributor.author Carmona, Raül es_ES
dc.contributor.author Montoya Bello, Plinio es_ES
dc.contributor.author Morales, Jorge es_ES
dc.date.accessioned 2015-06-19T10:19:55Z
dc.date.available 2015-06-19T10:19:55Z
dc.date.issued 2012 es_ES
dc.identifier.citation PLoS ONE Vol. 7 Issue 11: es_ES
dc.identifier.uri http://hdl.handle.net/10550/44567
dc.description.abstract The phylogenetic position of the giant panda, Ailuropoda melanoleuca (Carnivora: Ursidae: Ailuropodinae), has been one of the most hotly debated topics by mammalian biologists and paleontologists during the last century. Based on molecular data, it is currently recognized as a true ursid, sister-taxon of the remaining extant bears, from which it would have diverged by the Early Miocene. However, from a paleobiogeographic and chronological perspective, the origin of the giant panda lineage has remained elusive due to the scarcity of the available Miocene fossil record. Until recently, the genus Ailurarctos from the Late Miocene of China (ca. 8–7 mya) was recognized as the oldest undoubted member of the Ailuropodinae, suggesting that the panda lineage might have originated from an Ursavus ancestor. The role of the purported ailuropodine Agriarctos, from the Miocene of Europe, in the origins of this clade has been generally dismissed due to the paucity of the available material. Here, we describe a new ailuropodine genus, Kretzoiarctos gen. nov., based on remains from two Middle Miocene (ca. 12–11 Ma) Spanish localities. A cladistic analysis of fossil and extant members of the Ursoidea confirms the inclusion of the new genus into the Ailuropodinae. Moreover, Kretzoiarctos precedes in time the previously-known, Late Miocene members of the giant panda clade from Eurasia (Agriarctos and Ailurarctos). The former can be therefore considered the oldest recorded member of the giant panda lineage, which has significant implications for understanding the origins of this clade from a paleobiogeographic viewpoint. es_ES
dc.title Kretzoiarctos gen. nov., the Oldest Member of the Giant Panda Clade es_ES
dc.type journal article es_ES
dc.identifier.doi 10.1371/journal.pone.0048985 es_ES
dc.identifier.idgrec 086889 es_ES

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