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Updated April 2026
696+ Fossil Entries
Missouri Crinoid Calyx fossil specimen
echinodermMississippianUpdated March 2026

Missouri Crinoid Calyx

Mississippian

About Missouri Crinoid Calyx

The Missouri Crinoid Calyx is a echinoderm fossil dating to the Mississippian. Crinoid Calyx is a realistic Missouri fossil profile built around rarer crown portion of sea lilies with cup plates and arm bases. In this state, success usually comes from learning Mississippian limestones, chert gravels, and shale roadcuts, then timing runoff, reservoir drawdown, surf cuts, or road work that exposes fresh fossil-bearing rock instead of hunting blindly.

“According to TroveRadar, Missouri Crinoid Calyx fossils from the Mississippian are found across Missouri. TroveRadar's field database catalogs 696+ fossil entries for identification and collection guidance.

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Turn Missouri Crinoid Calyx into a month, law, metro, and ground plan.

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Law layer

Missouri state guide

Fossil collecting rules in Missouri 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 Mississippian marine fossils, geodes, and stream gravels.

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Identification Tips

  • cup-shaped plated body
  • radial symmetry
  • attached arm sockets
  • Check Mississippian limestones, chert gravels, and shale roadcuts

Where Found

Missouri

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Iowa Crinoid Stem

Iowa Crinoid Stem

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Crinoid Stem is a realistic Iowa fossil profile built around disk-like stem segments from sea lilies in shallow marine limestone. 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 Crinoid Stem

Illinois Crinoid Stem

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Crinoid Stem is a realistic Illinois fossil profile built around disk-like stem segments from sea lilies in shallow marine limestone. 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 Crinoid Stem

Indiana Crinoid Stem

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Crinoid Stem is a realistic Indiana fossil profile built around disk-like stem segments from sea lilies in shallow marine limestone. 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 Crinoid Stem

Ohio Crinoid Stem

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Crinoid Stem is a realistic Ohio fossil profile built around disk-like stem segments from sea lilies in shallow marine limestone. 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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Minnesota Crinoid Stem

Minnesota Crinoid Stem

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Crinoid Stem is a realistic Minnesota fossil profile built around disk-like stem segments from sea lilies in shallow marine limestone. 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.

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Wisconsin Crinoid Stem

Wisconsin Crinoid Stem

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Crinoid Stem is a realistic Wisconsin fossil profile built around disk-like stem segments from sea lilies in shallow marine limestone. 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.

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Explore More

How do I identify a Missouri Crinoid Calyx fossil?
Missouri Crinoid Calyx fossils from the Mississippian can be identified by: cup-shaped plated body. radial symmetry. attached arm sockets. Check Mississippian limestones, chert gravels, and shale roadcuts. They are most commonly found in Missouri.
Where are Missouri Crinoid Calyx fossils found?
Missouri Crinoid Calyx fossils are found in Missouri. Look in sedimentary rock formations dating to the Mississippian era. The best collecting is typically found in exposed roadcuts, creek banks, and quarry sites.
How old are Missouri Crinoid Calyx fossils?
Missouri Crinoid Calyx fossils date to the Mississippian. They are classified as echinoderm fossils in TroveRadar's database, which catalogs 696+ fossil entries across North America.
Is it legal to collect Missouri Crinoid Calyx 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.