Länk - Dinosaurieförsvinnande gav inte nya däggdjursarter
n fact, the ancestral branches of most mammals, including primates, rodents and hoofed animals, emerged long before the global extinction and survived it more or less intact. But it was not until at least 10 million to 15 million years afterward that the lineages of living mammals began to flourish in number and diversity.
Läs mer: Dinosaur extinction didn't produce flurry of mammal species - International Herald Tribune