277 B
277 B
Vertebrata
- Member of the Chordata
- Replaces the notochord with a spine
- "New head"
- Neural crest cells
- Transition to dry land started during the Devonian
Taxonomy
- Vertebrata
- Jawless Fishes
- Hagfishes
- Lampreys
- Gnathostomata
- Jawless Fishes