Tag: Paleogene
Fossil Friday: Fossil Elephant Shrews and the Abrupt Origin of Macroscelidea
Elephant shrews are sometimes considered to be living fossils, and their origin is believed to go back 57.5 million years in the Paleocene.
Fossil Friday: Purgatorius and the Abrupt Origin of Primates
Primates not only appeared suddenly, but their different subgroups of lemurs, tarsier, and simians all appeared at about the same time.