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Updated April 2026
696+ Fossil Entries
Michigan Isotelus Trilobite fossil specimen
arthropodOrdovicianUpdated March 2026

Michigan Isotelus Trilobite

Ordovician

About Michigan Isotelus Trilobite

The Michigan Isotelus Trilobite is a arthropod fossil dating to the Ordovician. Isotelus Trilobite is a realistic Michigan fossil profile built around large trilobite often found as enrolled sections in limestone and weathered talus. In this state, success usually comes from learning glacial till, Devonian limestones, and Lake Superior gravels, then timing runoff, reservoir drawdown, surf cuts, or road work that exposes fresh fossil-bearing rock instead of hunting blindly.

“According to TroveRadar, Michigan Isotelus Trilobite fossils from the Ordovician are found across Michigan. TroveRadar's field database catalogs 696+ fossil entries for identification and collection guidance.

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Turn Michigan Isotelus Trilobite into a month, law, metro, and ground plan.

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Law layer

Michigan state guide

Fossil collecting rules in Michigan vary by land status and fossil type. Common invertebrate fossils may be collectible on some public lands, but vertebrate fossils, protected park units, tribal lands, and cultural sites require a much higher level of care and often a permit. This is especially relevant in Petoskey stones, Devonian coral, and glacial gravels.

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Identification Tips

  • broad cephalon
  • large pygidium
  • thick calcitic shell
  • Check glacial till, Devonian limestones, and Lake Superior gravels

Where Found

Michigan

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Related Fossils

Iowa Trilobite

Iowa Trilobite

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Trilobite is a realistic Iowa fossil profile built around segmented marine arthropod preserved in shale or limestone from ancient inland seas. In this state, success usually comes from learning Silurian and Devonian limestones, shale cuts, and glacial gravels, then timing runoff, reservoir drawdown, surf cuts, or road work that exposes fresh fossil-bearing rock instead of hunting blindly.

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Illinois Trilobite

Illinois Trilobite

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Trilobite is a realistic Illinois fossil profile built around segmented marine arthropod preserved in shale or limestone from ancient inland seas. In this state, success usually comes from learning Silurian and Devonian limestones, shale cuts, and glacial gravels, then timing runoff, reservoir drawdown, surf cuts, or road work that exposes fresh fossil-bearing rock instead of hunting blindly.

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Indiana Trilobite

Indiana Trilobite

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Trilobite is a realistic Indiana fossil profile built around segmented marine arthropod preserved in shale or limestone from ancient inland seas. In this state, success usually comes from learning Silurian and Devonian limestones, shale cuts, and glacial gravels, then timing runoff, reservoir drawdown, surf cuts, or road work that exposes fresh fossil-bearing rock instead of hunting blindly.

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Ohio Trilobite

Ohio Trilobite

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Trilobite is a realistic Ohio fossil profile built around segmented marine arthropod preserved in shale or limestone from ancient inland seas. In this state, success usually comes from learning Silurian and Devonian limestones, shale cuts, and glacial gravels, then timing runoff, reservoir drawdown, surf cuts, or road work that exposes fresh fossil-bearing rock instead of hunting blindly.

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Pennsylvania Trilobite

Pennsylvania Trilobite

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Trilobite is a realistic Pennsylvania fossil profile built around segmented marine arthropod preserved in shale or limestone from ancient inland seas. In this state, success usually comes from learning Devonian shales, Mississippian limestones, and glacial gravels, then timing runoff, reservoir drawdown, surf cuts, or road work that exposes fresh fossil-bearing rock instead of hunting blindly.

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West Virginia Trilobite

West Virginia Trilobite

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Trilobite is a realistic West Virginia fossil profile built around segmented marine arthropod preserved in shale or limestone from ancient inland seas. In this state, success usually comes from learning Devonian shales, Mississippian limestones, and glacial gravels, then timing runoff, reservoir drawdown, surf cuts, or road work that exposes fresh fossil-bearing rock instead of hunting blindly.

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Explore More

How do I identify a Michigan Isotelus Trilobite fossil?
Michigan Isotelus Trilobite fossils from the Ordovician can be identified by: broad cephalon. large pygidium. thick calcitic shell. Check glacial till, Devonian limestones, and Lake Superior gravels. They are most commonly found in Michigan.
Where are Michigan Isotelus Trilobite fossils found?
Michigan Isotelus Trilobite fossils are found in Michigan. Look in sedimentary rock formations dating to the Ordovician era. The best collecting is typically found in exposed roadcuts, creek banks, and quarry sites.
How old are Michigan Isotelus Trilobite fossils?
Michigan Isotelus Trilobite fossils date to the Ordovician. They are classified as arthropod fossils in TroveRadar's database, which catalogs 696+ fossil entries across North America.
Is it legal to collect Michigan Isotelus Trilobite fossils?
Fossil collecting laws vary by state and land ownership. Common invertebrate fossils are generally collectible on some public lands for personal use, but vertebrate fossils and collecting on protected lands may require permits. Always check local regulations before collecting. Use TroveRadar's State Guides for specific rules.