Se estudian los Arvicolidae (Rodentia, Mammalia) de niveles inferiores Gran Dolina (TD3, TD4 y TD4B), relleno cárstico cerca 18 metros potencia que abarca parte del Pleistoceno Inferior Medio, se encuentra dentro complejo yacimientos Atapuerca (Burgos, España). Estos son conocidos principalmente por el hallazgo la mayor concentración restos humanos con un estado conservación excepcional. Además...

A new specimen of a fossil tooth the Suidae (Mammalia, Artiodactyla) discovered in upper Miocene Oiso Formation (ca. 8.29-5.57 Ma) Miura Group, Kanagawa Prefecture, Japan, is described. The left m3, and its hypoconulid has broken away. It bunodont, low-crowned, moderately to heavily worn. m3 typical lower molar morphology medium-sized suid, with some furrows on cusps. part containing first two ...

Living opossums (Didelphidae) comprise 125 species in 18 genera and 4 subfamilies. This synopsis lists all the didelphid taxa (subfamilies, tribes, genera, subgenera, species) currently recognised as valid, summarizes information about typification, synonyms, geographic distributions, remarks noteworthy recent changes usage, comments on still outstanding problems. A concluding discussion reject...