Related on Lably
Through Extinction, Species and North America
Aepycamelus spp. walked on their toes only. Unlike earlier species of camelids, they possessed cushioned pads like those of modern camels.
Taxonomy
Aepycamelus was formerly referred to the genus Alticamelus, which Matthew (1901) erected for "Procamelus" altus Marsh, 1894, a camel species described from a calcaneum found in Neogene deposits in Oregon, after he referred a complete skeleton of a tall camel from Colorado to that species. Matthew and Cook (1909) erected Alticamelus giraffinus for the Colorado specimen after recognizing the A. altus holotype as indeterminate. MacDonald (1956) recognized Alticamelus as a nomen dubium and erected Aepycamelus for species previously assigned to Alticamelus.
Sign in to keep reading
2 more chapters are free with a Lably account.
Morphology
Aepycamelus was a prairie dweller of North America (Colorado, etc.). It was a highly specialized animal. Its head was relatively small compared with the rest of its body, its neck was long, as a result of giraffe-like lengthening of the cervical vertebrae, and its legs were long and stilt-like, with the elbow and knee joints on the same level. The top of its head was about 3 m (9.8 ft) above the ground.
Its strange body structure gives information on its mode of life and habits. Aepycamelus obviously inhabited dry grasslands with groups of trees. It is presumed to have moved about singly or in small groups, like today's giraffes, and like them, browsed high up in the trees. In this respect, it had no competitors. It survived a relatively long time, through most of the Miocene epoch, and died out prior to the start of the Pliocene, possibly due to climatic changes.
Fossil distribution
Its fossils are distributed widely, from Montana to Florida to California.