
Wyoming Elrathia Trilobite
Cambrian
About Wyoming Elrathia Trilobite
The Wyoming Elrathia Trilobite is a arthropod fossil dating to the Cambrian. Elrathia Trilobite is a realistic Wyoming fossil profile built around small shale trilobite famous from thin laminated western exposures. In this state, success usually comes from learning dinosaur-bearing mudstones, glacial gravels, and marine shales, then timing runoff, reservoir drawdown, surf cuts, or road work that exposes fresh fossil-bearing rock instead of hunting blindly.
“According to TroveRadar, Wyoming Elrathia Trilobite fossils from the Cambrian are found across Wyoming. TroveRadar's field database catalogs 696+ fossil entries for identification and collection guidance.”
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Wyoming state guide
Fossil collecting rules in Wyoming 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 Morrison dinosaurs, marine ammonites, and mammal badlands.
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Location: Bridger-Teton National Forest
National Forest • Seasonal edible mushrooms, Common invertebrate fossils in float
Location: Bighorn National Forest
National Forest • Seasonal edible mushrooms, Common invertebrate fossils in float
Location: Shoshone National Forest
National Forest • Seasonal edible mushrooms, Common invertebrate fossils in float
Location: Medicine Bow-Routt National Forest
National Forest • Seasonal edible mushrooms, Common invertebrate fossils in float
Identification Tips
- ●flat body plan
- ●fine segments
- ●thin dark shale matrix
- ●Check dinosaur-bearing mudstones, glacial gravels, and marine shales
Where Found
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Related Fossils

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.

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.

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.

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.

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.

West Virginia Trilobite
Paleozoic
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.