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Subphylum TRILOBITA +
(Extinct)

 

 

bullet gif Trilobites are extinct arthropods. The trilobites disappeared in the mass extinction at the end of the Permian about 250 million years ago.

bullet gif The bodies of trilobites are divided into three parts: a cephalon (head), a thorax composed of freely articulating segments, and a pygidium)


Trilobite

Trilobite fossil

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bullet gif Trilobites appear to have been exclusively marine organisms
Trilobites

Trilobites fossils

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Trilobites

Trilobites fossils

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