23 févr. 488555555 av. J.-C. - Jawless Fish But Also VERTEBRATES
Description:
More Chordates come around, and in some cases the notochord becomes the backbone, making vertebratesAjouté au bande de temps:
Date:
23 févr. 488555555 av. J.-C.
Maintenaint
~ Il y a 5883516 ans