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2014-12
Vol.38-2
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PalaeoVertebrata Vol.38-2
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First record of the family Protocetidae in the Lutetian of Senegal (West Africa)
Lionel Hautier Logo, Raphaël Sarr Logo, Fabrice Lihoreau Logo, Rodolphe Tabuce Logo and Pierre Marwan Hameh
Published online: 05/12/2014

Keywords: innominate; Lutetian; Protocetid; Senegal

https://doi.org/10.18563/pv.38.2.e2
Cited by: 12

Cite this article: Lionel Hautier, Raphaël Sarr, Fabrice Lihoreau, Rodolphe Tabuce and Pierre Marwan Hameh, 2014. First record of the family Protocetidae in the Lutetian of Senegal (West Africa). PalaeoVertebrata 38 (2)-e2. doi: 10.18563/pv.38.2.e2

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Abstract

The earliest cetaceans are found in the early Eocene of Indo-Pakistan. By the late middle to late Eocene, the group colonized most oceans of the planet. This late Eocene worldwide distribution clearly indicates that their dispersal took place during the middle Eocene (Lutetian). We report here the first discovery of a protocetid fossil from middle Eocene deposits of Senegal (West Africa). The Lutetian cetacean specimen from Senegal is a partial left innominate. Its overall form and proportions, particularly the well-formed lunate surface with a deep and narrow acetabular notch, and the complete absence of pachyostosis and osteosclerosis, mark it as a probable middle Eocene protocetid cetacean. Its size corresponds to the newly described Togocetus traversei from the Lutetian deposits of Togo. However, no innominate is known for the Togolese protocetid, which precludes any direct comparison between the two West African sites. The Senegalese innominate documents a new early occurrence of this marine group in West Africa and supports an early dispersal of these aquatic mammals by the middle Eocene.
  



Published in Vol.38-2 (2014)

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Cited by:

Lionel Hautier, Raphaël Sarr, Fabrice Lihoreau, Rodolphe Tabuce and Pierre Marwan Hameh (2014). 3D model related to the publication: First record of the family Protocetidae in the Lutetian of Senegal (West Africa). MorphoMuseuM. https://doi.org/10.18563/m3.1.1.e2

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