Chordata

classifying characteristics of phylum chordata for biology class

1. PHYLUM: CHORDATAPHYLUM: CHORDATA
The invertebrate chordatesThe invertebrate chordates

2. CLASSIFYING CHARACTERISTICSCLASSIFYING CHARACTERISTICS
•Have a dorsal Have a dorsal
notochordnotochord, which , which
supports the “spinal” supports the “spinal”
nerve and nerve and
•Have a Have a hollow nerve hollow nerve
cord,cord, which typically which typically
develops into a develops into a
spinal cordspinal cord
Formation of nerve cord

3. MORE CLASSIFYING CHARACTERISTICSMORE CLASSIFYING CHARACTERISTICS
•Have a Have a pharyngeal pouchpharyngeal pouch, which become , which become
gills, jaw bones, inner ears, etc.gills, jaw bones, inner ears, etc.
•Have a Have a postanal tailpostanal tail..

4. MORE CLASSIFYING CHARACTERISTICSMORE CLASSIFYING CHARACTERISTICS
•Have a Have a postanal tailpostanal tail..

6. Urochordata: TUNICATESUrochordata: TUNICATES

7. Also called Sea Squirts

8. Cephalachordata: LanceletsCephalachordata: Lancelets

9. VERTEBRATESVERTEBRATES
•FishFish
•AmphibiansAmphibians
•ReptilesReptiles
•AvesAves
•MammalsMammals