Size: The size of Elasmotherium sibiricum varied

el Kritosaurus navajovius vivía en un mundo peligroso

The beak was long

The Smilodon

Synthetoceras tricornatus Escala:1:35 Size: The size of ElasmotheriumSynthetoceras tricornatus was an extinct artiodactyl mammal belonging to Protoceratidae, an exclusively North American family of ungulates that has no living representatives. It lived during the Late Miocene of North America and is particularly well represented in Clarendonian faunas from the southern United States, with important records from Texas and other regions of the Great Plains. Although its general appearance may superficially resemble that