Squid Cream Cones
Kind of like an ice cream cone, but holding a squid-like creature, Orthoceras ruled the Ordovician seas. Today its fossils are abundant and popular.
Amazing But True!
- Orthoceras was a cephalopod like octopus, squid and nautilus today.
- Their fossils are found worldwide.
- Orthoceras fossils are most commonly found in limestone.
- There are millions of these fossils around.
Show What You Know
With the link below, learn more about Orthoceras. Then answer the following questions.
- Sci Show, The Story of the World’s Favorite Fossil (video): http://www.youtube.com/watch?v=a7fymvFQ0CQ
- What was the Cambrian explosion?
- What did marine organisms evolve to become predators? What did they evolve for protection from predators?
- Why did Orthoceras rule the seas?
- How did Orthoceras get around?
- Why are there so many Orthoceras fossils in some locations?