Systematics of African Amphicyonidae, with descriptions of new material from Napak (Uganda) and Grillental (Namibia)

  • Jorge Morales Romero Departamento de Paleobiología, Museo Nacional de Ciencias Naturales-CSIC, C/ José Gutiérrez Abascal, 2, 28006 Madrid, Spain.
  • Martin Pickford Sorbonne Universités - CR2P, MNHN, CNRS, UPMC - Paris VI, 8, rue Buffon, 75005, Paris, France.
  • Alberto Valenciano Vaquero IGEO (CSIC, UCM) and Departamento Paleontología UCM
Keywords: Carnivora, Amphicyonidae, Miocene, Africa, Systematics

Abstract

The Early Miocene Napak XV locality (ca 20.5 Ma), Uganda, has yielded an interesting assemblage of fossils, including the very well represented amphicyonid Hecubides euryodon. The remarkable find of a nearly complete mandible, unfortunately with poorly preserved dentition, together with new dental remains allow us to obtain a better idea about the morphology and variability of this species. Additionally, we describe a newly discovered mandible of Hecubides euryodon from the Grillental-VI locality (Sperrgebiet, Namibia), which is the most complete and diagnostic Amphicyonidae material found in this area. Comparisons with Cynelos lemanensis from Saint Gérand le Pouy (France), the type locality, and with an updated sample of the species of amphicyonids described in Africa leads us to validate the genus Hecubides. Hecubides would be phylogenetically related to the medium and large size species of Amphicyonidae from Africa, most of them now grouped into the genera Afrocyon and Myacyon, both endemic to this continent.

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Author Biography

Alberto Valenciano Vaquero, IGEO (CSIC, UCM) and Departamento Paleontología UCM
PhD student from IGEO and Departamento de Paleontología UCM
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Published
2016-08-04
How to Cite
Morales Romero J., Pickford M. y Valenciano Vaquero A. (2016). Systematics of African Amphicyonidae, with descriptions of new material from Napak (Uganda) and Grillental (Namibia). Journal of Iberian Geology, 42(2), 131-150. https://doi.org/10.5209/rev_JIGE.2016.v42.n2.51960
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