Pediomeryx

Pediomeryx is an extinct genus of Artiodactyla, of the family Palaeomerycidae, endemic to North America from the early Miocene epoch (Hemingfordian stage) 10.3—4.9 Ma, existing for approximately 5.4 million years.

Taxonomy
Pediomeryx was named by Stirton (1936). It was assigned to Dromomerycidae by Stirton (1936) and Janis and Manning (1998); to Dromomerycinae by Hulbert and Whitmore (2006); and to Cranioceratini by Prothero and Liter (2007).

Body mass
A single fossil specimen of Pediomeryx was measured by M. Mendoza, C. M. Janis, and P. Palmqvist for body mass.[5]
 * Specimen 1: 251 kg (550 lb)