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'''Trilobites''' are an extinct form of [[arthropod]]. These creatures had segmented bodies, jointed legs and antennae. They came in a wide variety of sizes ranging from being under a millimeter long to being over two feet in length. [[Evolution]]ists believe that trilobites existed over 300 million years ago.
'''Trilobites''' are an extinct form of [[arthropod]]. These creatures had segmented bodies, jointed legs and antennae. They came in a wide variety of sizes ranging from being under a millimeter long to being over two feet in length. [[Evolution]]ists believe that trilobites existed over 300 million years ago and went extinct at the end of the [[Permian]] period.
The trilobite is Ohio's official state fossil.<ref>Ohio Revised Code 5.071</ref>
The trilobite is Ohio's official state fossil.<ref>Ohio Revised Code 5.071</ref>
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==Links==
*[http://www.trilobites.info/ Guide to Trilobites]
*[http://www.westernta.com/ Western Trilobite Association]
[[Category:Invertebrates]]
[[Category:Invertebrates]]