Verified by TroveRadar Field Database
Updated March 2026
795+ Fossil Entries
marine-invertebrateDevonian-MississippianUpdated March 2026

Illinois Spirifer Brachiopod

Devonian-Mississippian

Illinois Spirifer Brachiopod fossil specimen

About Illinois Spirifer Brachiopod

The Illinois Spirifer Brachiopod is a marine-invertebrate fossil dating to the Devonian-Mississippian. Spirifer Brachiopod is a realistic Illinois fossil profile built around winged brachiopod with strongly extended hinge line. 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.

“According to TroveRadar, Illinois Spirifer Brachiopod fossils from the Devonian-Mississippian are found across Illinois. TroveRadar's field database catalogs 795+ fossil entries for identification and collection guidance.

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Identification Tips

  • long hinge line
  • deep fold and sulcus
  • strong ribs
  • Check Silurian and Devonian limestones, shale cuts, and glacial gravels

Where Found

Illinois

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Brachiopod is a realistic Iowa fossil profile built around two-shelled filter feeder that dominates many Paleozoic limestone beds. 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 Brachiopod

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Brachiopod is a realistic Illinois fossil profile built around two-shelled filter feeder that dominates many Paleozoic limestone beds. 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 Brachiopod

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Brachiopod is a realistic Indiana fossil profile built around two-shelled filter feeder that dominates many Paleozoic limestone beds. 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 Brachiopod

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Brachiopod is a realistic Ohio fossil profile built around two-shelled filter feeder that dominates many Paleozoic limestone beds. 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 Brachiopod

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Brachiopod is a realistic Ohio fossil profile built around two-shelled filter feeder that dominates many Paleozoic limestone beds. 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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Pennsylvania Brachiopod

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Brachiopod is a realistic Pennsylvania fossil profile built around two-shelled filter feeder that dominates many Paleozoic limestone beds. 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 Illinois Spirifer Brachiopod fossil?
Illinois Spirifer Brachiopod fossils from the Devonian-Mississippian can be identified by: long hinge line. deep fold and sulcus. strong ribs. Check Silurian and Devonian limestones, shale cuts, and glacial gravels. They are most commonly found in Illinois.
Where are Illinois Spirifer Brachiopod fossils found?
Illinois Spirifer Brachiopod fossils are found in Illinois. Look in sedimentary rock formations dating to the Devonian-Mississippian era. The best collecting is typically found in exposed roadcuts, creek banks, and quarry sites.
How old are Illinois Spirifer Brachiopod fossils?
Illinois Spirifer Brachiopod fossils date to the Devonian-Mississippian. They are classified as marine-invertebrate fossils in TroveRadar's database, which catalogs 795+ fossil entries across North America.
Is it legal to collect Illinois Spirifer Brachiopod 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.