Print ISSN: 0031-0247
Online ISSN: 2274-0333
Révision des Rhombodontidae (Neoselachii Batomorphii) des bassins à phosphate du Maroc
A pangolin from the French Quercy phosphorites
La palichnofaune de vertébrés tétrapodes du permien supérieur du Bassin de Lodève .
Macroscelidea, Insectivora and Chiroptera from the Miocene of east Africa
About the genus Propachynolophus Lemoine 1891
Les Bovidae (Artiodactyla, Mammalia) du Miocène moyen de la formation Hofuf (Province du Hasa, Arabie Saoudite).Biostratigraphy; Bovidae; Middle Miocene; Palaeogeography; Saudi Arabia
The study of the bovids from Al Jadidah (Hofuf Formation, Saudi Arabia) confirms that the fauna comes from a pre-Hipparion level. The Al Jadidah age is close to that of Fort Ternan (14 m.y.) and Beni Mellal, but cannot be older than that of Fort Ternan. The age of the Hofuf Formation is close to but slightly older than the oldest deposits of the Ngorora Formation (Kenya). 7 to 9 species have been recorded, of which 2 to 4 remain indeterminate. If the great specific diversity of te bovids from this locality gives evidence of immigrations from anterior Asia (Turkey) (e.g. Pachytragus Iigabuei sp. nov.), the bovid assemblage of Al Jadidah results in fact from a double inﬂuence: from the anterior Asia and mainly from Africa (e.g. the Caprotragoides lineage and the Neotragini? Homoiodorcas). The Al Jadidah bovids reflect, on the whole, the predominant character of open to very open environment, which supports the conclusions drawn from our two preliminary studies.
Published in Vol. 13, Fasc. 5 (1983)