Did You Know?

Some trilobites were as big as dogs!

What It Looks Like

It has a round shell and many legs.

Where It Lived

It lived in the ocean long ago.

What asaphus expansus Does

It swam in the sea.

It ate small plants and bugs.

It had a hard shell for safety.

It lived in groups with friends.

It could hide from big fish.

It is now a fossil we can find.

More About asaphus expansus

This bug lived a long time ago. It swam in the sea with other bugs. It is now a fossil we can see in museums. People study these fossils to learn more.

We can find fossils of this bug in rocks. These rocks tell us about life in the sea. It helps us know how life has changed.

Some fossils are very old. They can be millions of years old! It is cool to think about how life was back then.

How Topics Connect

graph TD A["Asaphus expansus"] --> B["Type species of Asaphus"] A --> C["Previously classified as Entomostracites expansus"] B --> D["Asaphid trilobite genus"] C --> E["Split off into its own genus"]

What Do These Words Mean?

type species:a main example of a group of animals or plants
trilobite:an extinct sea creature with a hard shell and many legs
genus:a group of related species
classified:put into a specific category
split off:separated from a larger group