Claim: Cranioceras(Matthew, 1918) is an extinct genus of artiodactyl of the Palaeomerycidae family from the class Mammalia from the Miocene to the Pliocene in the United States.
Evidence: †Cranioceras
Matthew, 1918 Cranioceras is an extinct genus of artiodactyl from the Miocene to the Pliocene in the United States. †Palaeomerycidae Family: Mammalia Class: