Oxydactylus

Oxydactylus is an extinct terrestrial herbivorous genus of the tribe Camelini, family Camelidae, endemic to North America Oligocene through the Middle Miocene (30.8–13.6 mya) and in existence for approximately 17.2 million years.[1]

Oxydactylus is from the Ancient Greek οξύς (oxys, "sharp")and δάκτυλος (daktylos, "finger")

Taxonomy
Oxydactylus was named by Peterson in 1904. Its type is Oxydactylus longipes. It was assigned to Camelidae by Peterson (1904) and Carroll (1988).

Morphology
They had very long legs and necks, and were probably adapted to eating high vegetation, much like modern giraffes. Unlike modern camelids, they had hooves, rather than tough sole-pads and splayed toes.[3]

Four specimens were examined by M. Mendoza, C. M. Janis, and P. Palmqvist for estimated body mass.[4]
 * Specimen 1: 183.3 kg (404.1 lb)
 * Specimen 2: 115.9 kg (255.5 lb)
 * Specimen 3: 116.5 kg (256.8 lb)
 * Specimen 4: 126.3 kg (278.4 lb)