A possible restoration of the American goatbird, based on perfectly preserved remains.
The American goatbird is an extinct species of Ceratopsid that evolved from the same ancestors as the modern day Korean goatbird, which was an extinct species of Koreaceratops. They were yellowish-brown in color with blue-colored heads, but it may only be males, so females may have been completely yellowish-brown in color. They were fast-moving and herbivorous that fed on wide variety of native American plants. They were about the size of a modern day Korean goatbird when fully grown and was similar in build, but unlike Korean goatbird, it had Psittacosaurus-like quill-looking feathers instead of a paddle-like tail, possibly to attract mates or to signal other American goatbirds. They lived in North America, possibly when its Asian ancestors made it from Asia to North America during the Oligocene through a land bridge. They were around from 5 million years ago in the Pliocene to about 4,500 years ago in the Early Holocene, when they suddenly became extinct for some reason, but it may have been killed off due to humans overhunting them. However, thanks to perfectly preserved remains, it is possible to bring the American goatbird back from extinction through cloning, using the Korean goatbird as a surrogate mother.