Divergence date of mammals from reptiles
| Range | ~300 Mya |
|---|---|
| Organism | vertebrates |
| Reference | Brian Cotterell, Fracture and Life, Imperial College Press, 2010 p.81 2nd paragraph |
| Comments | "Mammals began to evolve from reptiles through the synapsids about 300 million years ago. Their teeth had a single reptilian cusp and all the mammalian teeth evolved from this single shape." |
| Entered by | Uri M |
| ID | 108645 |