26 juill. 16000000 av. J.-C. - Placental Evolution
Description:
Although they initially evolved during the late cretaceous period around 160 million years ago, they became much more diverse and common after the KPG 66 million years ago. Early placental mammals were likely small creatures that ate insects, and they were able to succeed later on because of the KPG and extinction of the dinosaurs.Ajouté au bande de temps:
Date:
26 juill. 16000000 av. J.-C.
Maintenaint
~ Il y a 5883516 ans