579 B
579 B
Chordata
- Member of the Deuterostomia
- Most basal branch: Cephalochordata
- Barely has a central nervous system
- 5 synapomorphies
- notochord
- dorsal hollow nerve cord
- endostyle
- pharyngeal slits
- post-anal tail
- Invertebrate
- Main branch
- First Chordates appeared in the Cambrian
Taxonomy
- Chordata
- Cephalochordata
- Olfactores
- Urochordata
- Vertebrata
- Jawless Fishes
- Hagfishes
- Lampreys
- Gnathostomata
- Jawless Fishes