Hippopotamus antiquus is an extinct species of Hippopotamus that ranged across Europe during the Early and Middle Pleistocene.
Hippopotamus antiquus
Skull in Muséum national d'histoire naturelle, Paris
Hippopotamus gorgops is an extinct species of Hippopotamus known from remains found in Northern and Eastern Africa as well as the Levant. It first appeared during the late Pliocene-Early Pleistocene, and became extinct during the early Middle Pleistocene.
Hippopotamus gorgops