Iowa Crinoid Calyx
Mississippian
About Iowa Crinoid Calyx
The Iowa Crinoid Calyx is a echinoderm fossil dating to the Mississippian. Crinoid Calyx is a realistic Iowa fossil profile built around rarer crown portion of sea lilies with cup plates and arm bases. 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, Iowa Crinoid Calyx fossils from the Mississippian are found across Iowa. TroveRadar's field database catalogs 795+ fossil entries for identification and collection guidance.”
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Identification Tips
- ●cup-shaped plated body
- ●radial symmetry
- ●attached arm sockets
- ●Check Silurian and Devonian limestones, shale cuts, and glacial gravels
Where Found
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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.
Illinois Crinoid Stem
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Indiana Crinoid Stem
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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.
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.
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.