 By 35 million years ago, the "Poebrotherium" was the size of a goat and had many more traits similar to camels and llamas.The hoofed "Stenomylus", which walked on the tips of its toes, also existed around this time, and the long-necked "Aepycamelus" evolved in the Miocene.An early relative of extant Old World camels, "Paracamelus", existed in the upper Miocene to Middle Pleistocene.