The Pleistocene and Holocene mammalian assemblages from the Maasvlakte near 
Rotterdam (the Netherlands), with special reference to the Ovibovini Soergelia minor 
and Praeovibos cf. priscus

The Maasvlakte is an artificially created area on the North Sea coast near Rotterdam. The suctiondredged sediments used to create the area, yielded a variety of mammalian remains. The late mr N.C. Kerkhoff and mrs A. Kerkhoff-van Grondelle have collected more than five thousand identifiable mammalian fossils on the Maasvlakte. Analyses of their collection showed that the Maasvlakte assemblage could be divided into at least four different faunas. Fauna 0, a small fauna with an Early Pleistocene age; Fauna I, late Early- to early Middle Pleistocene in age; Fauna II from the Late Pleistocene (Eemian? and Weichselian) and Fauna III with a Holocene age. Among the fossil remains there are remarkable specimens from species that are rare in the Pleistocene fossil record for example Soergelia minor and Praeovibos cf. priscus. Molars of these two species are described and figured in this paper.