Search results for "Vallesian"

Systematic revision of the Late Miocene sabre-toothed felid Paramachaerodus in Spain

2010

Abstract:  A systematic revision of the sabre-toothed cat genus Paramachaerodus Pilgrim, 1913 is presented. Two species are recognized within Paramachaerodus, Pa. orientalis, and Pa. maximiliani, and the genus Promegantereon Kretzoi, 1938 is retrieved to include Promegantereon ogygia. Material from the Turolian Spanish localities of Crevillente-2 (MN 11, Alicante) and Las Casiones (MN 13, Teruel), which was previously assigned to Paramachaerodus, is now included in the tribe Metailurini. The exceptional discoveries at the Spanish Vallesian (MN 10, Madrid) fossil site of Batallones-1 have made it possible to characterize the dentition and cranial anatomy of a previously very poorly known mac…

1994

Giraffid remains from several Neogene localities from the Temel Basin (Spain) are stu­ died. The material belongs to the following sites: Masia de la Roma and Masia del Barbo (Vallesian); Masada del Valle 2 (Turolian); La Gloria 4 and La Calera (Alfambrian). Fos­ sils recently obtained are described, with special emphasis on the Pliocene taxa that were previously unrecorded in this basin. The presence of Decennatheriumpachecoi in the Va­ llesian and Birgerbohlinia schaubi in the Turolian is specified here. In order to make a dis­ tinction between both species two characteristics can be pointed out among the rest: the postcranial skeleton of Decennatherium is more slender than the one of Bir…

Una nueva especie de <i>Agriarctos</i> (Ailuropodinae, Ursidae, Carnivora) en la localidad de Nombrevilla 2 (Zaragoza, España)

2011

Una nueva especie de úrsido primitivo, Agriarctos beatrix procedente de la localidad de Nombrevilla 2 (Zaragoza, cuenca de Calatayud-Daroca) es descrita en este trabajo. Los nuevos fósiles de Nombrevilla 2 se relacionan estrechamente con Agriarctos depereti de la localidad de Soblay (Vallesiense superior, Francia), pero en la forma española los caracteres derivados compartidos son más primitivos. Agriarctos beatrix es la primera aparición conocida hasta el presente de un miembro de la subfamilia Ailuropodinae en el registro fossil.

Brachyodonty and hypsodontyin some Palaeogene Eurasiatic Lagomorphs

1977

Abstract Palaeogene Eurasiatic lagomorphs show more or less different degrees and kinds of brachiodonty and hypsodonty in the cheek teeth. No fully brachyodont lagomorphs are known up to the present. The probably Paleocene Mimolagus from Western Kansu shows the less advanced stage against partial hypsodonty in the upper cheek teeth. Partial hypsodonty is more advanced in the late Eocene Mongolian genera Shamolagus, Gobiolagus and Lushilagus. Roots, however, are still well developed in the cheek teeth. Some recent discoveries from earlier Oligocene sites in France and Germany seem to represent a comparable degree of hypsodonty. The Asiatic Oligocene Desmatolagus is partiallyhypsodont with ro…