Comparative Skull Osteology of Oreomylodon wegneri (Xenarthra, Mylodontinae): Defining the Taxonomic Status of the Ecuadorian Endemic Mylodontid

José Luis Román-Carrión; Luciano Brambilla

doi:10.1080/02724634.2019.1674860

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21 December 2019 Comparative Skull Osteology of Oreomylodon wegneri (Xenarthra, Mylodontinae): Defining the Taxonomic Status of the Ecuadorian Endemic Mylodontid

José Luis Román-Carrión, Luciano Brambilla

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J. of Vertebrate Paleontology, 39(4): (2019). https://doi.org/10.1080/02724634.2019.1674860

Abstract

The diversity reached by the mylodontids during the Pleistocene has been underestimated in the past. Oreomylodon wegneri, the endemic mylodontid of Ecuador, has been considered both a species of Glossotherium and a synonym of Glossotherium robustum. In this work, we provide a detailed description of abundant O. wegneri material and compare it with material of G. robustum from Argentina and other mylodontids. The study presented here shows that O. wegneri was a mylodontid with a singular cranial morphology, especially in the palate and nasal region and is possibly closer evolutionarily to Paramylodon harlani than to the more southern G. robustum.

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José Luis Román-Carrión and Luciano Brambilla "Comparative Skull Osteology of Oreomylodon wegneri (Xenarthra, Mylodontinae): Defining the Taxonomic Status of the Ecuadorian Endemic Mylodontid," Journal of Vertebrate Paleontology 39(4), (21 December 2019). https://doi.org/10.1080/02724634.2019.1674860

Received: 8 May 2019; Accepted: 8 September 2019; Published: 21 December 2019

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