Paleontologists have discovered three new mammal species fossils from an ancient riverbed in southern Wyoming. / discovered three new fossil mammal species /. The new species of mammals lived thousands of years after the extinction of the dinosaurs 66 million years ago. These three new mammal species are the ancestors of the hoofed animals found today, namely cattle, horses and deer, but they are very small. Their discovery suggests that the Age of Mammals began on Earth after the dinosaur disappeared. The discovery arouses curiosity among researchers as to what happened after the dinosaur became extinct.
Paleontologists say the new three species include primitive ungulates. It is also commonly known as “Condylarths”. Early condylarths are about the size of a rat and have many toes instead of hoofs. Fossil remains of new mammal species – Miniconus jeanninae, Conacodon hettingeri, and Beornus honeyi – have been found in Wyoming / Great Divide Basin.
It is not clear whether it is vegetarian or mixed. When the dinosaur became extinct, mammals had access to a wide range of food and environments. These helped the mammals to thrive and evolve into larger mammals. Detailed studies on this have been published in the Journal of Systematic Palaeontology.