Simocyon primigenius

Simocyon primigenius is the type species of the extinct ailurid carnivoran genus Simocyon, described by Roth and Wagner in 1854. Its type locality is Pikermi in Greece, of the Turolian stage of the late Miocene, and it is also known from Spain, from China in the Baode and Yushe basins, and, through its junior synonym Simocyon marshi, from Oregon, Idaho and Nevada. A 2005 review treats it as the most derived Simocyon, with the second and third premolars lost in both jaws, a more vertical coronoid process on the lower jaw and a shorter angular process than in Simocyon batalleri. Its fourth lower premolar is thought to have become the main bone cracking tooth. The genus shows a more carnivorous diet than any other ailurid or procyonid, with the shearing carnassials emphasised.