Ohio made isotelus the states official fossil

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In 1985, Ohio made Isotelus the state's official fossil. Isotelus is a trilobite that existed between 430 and 480 million years ago. At that time, an ocean covered much of what is now Ohio. A trilobite was an invertebrate marine creature having a hard outer shell or skeleton. Two lines crossed the body of the trilobite, making it appear to be in three parts. Trilobite means "three-lobed creature." Isotelus primarily lived during the Ordovician Age and was one of the largest trilobites, with some of them reaching more than two feet in length. Describe how these trilobites lived (their ocean environment) and where are they found today in the rock record.

Reference no: EM133610761

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