The occipital region of late Pleistocene Mylodontidae of Argentina
In deposits of the late Pleistocene of Argentina the remains of ground sloths (Xenarthra, Folivora) are frequently represented by crania in which only the posterior region is preserved. In this work we characterize the occipital region of late Pleistocene Mylodontidae to allow a taxonomic identifi...
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| Autores principales: | , |
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| Formato: | article artículo publishedVersion Material Didáctico |
| Lenguaje: | Inglés |
| Publicado: |
Instituto de Fisiografía y Geología. Facultad de Ciencias Exactas, Ingeniería y Agrimensura. Universidad Nacional de Rosario
2019
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| Materias: | |
| Acceso en línea: | http://hdl.handle.net/2133/14367 http://hdl.handle.net/2133/14367 |
| Aporte de: |
| Sumario: | In deposits of the late Pleistocene of Argentina the remains of ground sloths (Xenarthra, Folivora) are
frequently represented by crania in which only the posterior region is preserved. In this work we characterize the
occipital region of late Pleistocene Mylodontidae to allow a taxonomic identification of fragmentary specimens of
Lestodon armatus, Mylodon darwinii, Glossotherium robustum and Scelidotherium leptocephalum. The available
juvenile specimens were also included in this study and the ontogenetic shape changes are described. Additionally, the
signs in the occipital region that allow the identification of juvenile specimens are discussed. The mylodontids G.
robustum and M. darwinii have a significant variability in the occipital region which could be explained by sexual
differences, or well as a result of palaeoenvironmental changes that took place during the Lujanian. |
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