Bug Wiki
Sticker of Elrathia
Bug card No. 0458 of 1,500

Elrathia

Name means: “named after Elrath, a place in Alabama”
Eats: Leftovers and dead thingsPrehistoric giantsPrehistoricNot a bug of today, but a prehistoric giant

Elrathia was a trilobite, a sea creature with a hard, smooth, oval shell, a distant relative of today's insects and crabs. It crawled on the sea floor more than 500 million years ago. Its fossils are so common that it is the trilobite people know best.

This one died out a very long time ago. It is one of the most famous bugs of prehistoric times, so it gets a place in Bug Wiki too.
Lived
509 to 497 million years ago
Fossils found in
North America, especially Utah in the United States, where its fossils are found
Top speed
about 1 km/h (0.62 mph)
Swimming, estimate
Can it hurt you?
Harmless
It died out hundreds of millions of years ago, so you can only meet it as a fossil.
What does it eat?
Nobody knows for sure. It lived where the water had very little oxygen, and it may have got its food from tiny living things that did not need sunlight.
For real!Photo of Elrathia
Picture by Wilson44691. Public domain, via Wikimedia Commons.

When did it live?

Before the dinosaurs
Age of dinosaurs
Age of mammals
540 million years ago25266today

How fast is it?

cool stuff

Fun facts

1

One fossil collector dug up about 1.5 million of them in 20 years.

2

Its body had about 13 segments in the middle, like a stack of tiny rings.

3

It lived in water with so little oxygen that most other animals could not live there. It is the oldest known animal to do that.

4

Its name comes from a place called Elrath in Alabama.

5

It was a medium-sized trilobite, and its shell got narrower towards the back.

you asked

Most asked questions about Elrathia

?When did Elrathia live?

In the middle of the Cambrian period, more than 500 million years ago.

?Where are Elrathia fossils found?

Mostly in Utah in the United States, where there are huge numbers of them.

?What is a trilobite?

A sea animal with a hard shell and many legs that lived long ago. Trilobites are distant relatives of insects, spiders and crabs.

For bug experts

Scientific name
Elrathia
Group
Prehistoric giants
Classification
Trilobita > Ptychopariida

Where the facts come from

  1. Elrathia (Wikipedia, CC BY-SA 4.0): what it looks like, where it lives, what it eats, sizes and fun facts, retold in simple words.
  2. Picture by Wilson44691. Public domain, Wikimedia Commons. The round sticker of this bug is cut from the same picture.

If we got something wrong, sorry, we are bug fans, not a science journal. Tell us at [email protected] and we will fix it.

More from the same group: Prehistoric giants