Pecora

Pecora is a clade of even-toed hoofed mammals (Artiodactyla) with ruminant digestion. Most Pecorans have cranial appendages projecting from their frontal bones; only two extant genera lack them, Hydropotes and Moschus. The name "Pecora" comes from Latin pecus, meaning "cattle". Most Pecorans have cranial appendages, but only some of these are true horns, and many scientists believe these appendages did not arise from a common ancestor, but evolved independently at least twice. Likewise, while Pecora as a group is supported by both molecular and morphological studies, morphological support for interrelationships between Pecora families is disputed.