Tag: Triceratops
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.
Dinosaur Phylogeny Gets a “Radical Shakeup,” Requiring Convergent Evolution
Convergent evolution is a problem for Darwinian evolution because it means that biological similarity does not necessarily result from inheritance from a common ancestor.