vertebrates
vertebrates
vertebrates
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Chondrichthyans (Sharks, Rays,<br />
and Their Relatives)<br />
• Chondrichthyans (Chondrichthyes)<br />
have a skeleton composed primarily of<br />
cartilage<br />
• The cartilaginous skeleton evolved<br />
secondarily from an ancestral mineralized<br />
skeleton<br />
• The largest and most diverse group of<br />
chondrichthyans includes the sharks,<br />
Video: Shark Eating Seal<br />
rays, and skates<br />
Video: Manta Ray