15 mai 260000000 av. J.-C. - Cynodonts
Description:
The mammalian ancestor was contained in the cynodont group. It had similar teeth, digestive and reproductive systems to what would eventually become mammals.Ajouté au bande de temps:
Date:
15 mai 260000000 av. J.-C.
Maintenaint
~ Il y a 5883516 ans