CHORDATA

1
CHORDATA
2
CHORDATE CHARACTERISTICS

• NOTOCHORD
• DORSAL TUBULAR NERVE CORD
• PHARYNGEAL GILL POUCHES
• POSTANAL TAIL

3
CHORDATES

• INVERTEBRATE TYPE
• UROCHORDATA --- TUNICATES OR SEA SQUIRTS
• CEPHALOCHORDATA --- LANCELETS OR AMPHIOXUS

4
CHORDATES

• VERTEBRATE TYPE
• FISH
• AGNATHA
• CHONDRICHTHYES
• OSTEICHTHYES
• AMPHIBIANS
• REPTILES
• BIRDS
• MAMMALS

5
VERTEBRATE TRAITS

• SEGMENTED
• SPECIALIZED PARTS
• ENDOSKELETON
• 2 PAIRS OF APPENDAGES
• COMPLEX BRAIN ENCLOSED IN SKULL
• HIGHLY DEVELOPED ORGAN SYSTEMS
• AQUATIC AND TERRESTRIAL