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by: Nate Trilobites were one of the first species of arthropods. Some Arthropods
Arthropods'
bodies are split into sections as well as their legs. Arthropods Trilobites
had three main body parts, the cephlon (head), thorax (middle), and the
pygidum (tail). Most Most trilobites lived in shallow water and walked on the bottom. They ate left over decaying remains of animals. Some trilobites were able to roll up for defense. Trilobites went extinct before the dinosaurs were even alive!
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have an
exoskeleton. Usually their legs are for walking or swimming. But sometimes
they're used for defensive or offensive weapons, sense organs, sucking
organs, or jaws.
trilobites are about an inch long. The name
"trilobite" means "three lobed." The three lobes are
the left pleural lobe, axial lobe (middle), and the right pleural lobe.