Camelidae is the camels, llamas, alpacas, vicugnas and guanacos family of animals of the order Artiodactyla. Camelids are all large, the South American forms ranging in weight from 35 kg to almost 100 kg. Old World camels, however, are much larger, weighing between 450 kg and 650 kg. Camelids vary in body shape from slender to stocky, but all have long, gracile necks; a small head; and long, slender legs. The upper lip is deeply and distinctively cleft. Their toes are splayed, and Camelids are the only plantigrade or fully digitigrade ungulates. The skulls of Camelids have an elongated rostrum, a well developed sagittal crest, and a complete postorbital bar. They lack horns or antlers. The cheek teeth are selenodont. Upper incisors are present; young have three on each side, but adults have only one, which is canine-like. The spatulate lower incisorsproject forward. The canines, which are present in both upper and lower jaws, are medium- sized and hooked. A wide diastema separates incisors and cheek teeth. Research Camelidae
Abbreviations
Nature
Research Camelidae