Michigan Crinoid Calyx Identification
Crinoid Calyx is a realistic Michigan fossil profile built around rarer crown portion of sea lilies with cup plates and arm bases. 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.
Key Traits
- ●cup-shaped plated body
- ●radial symmetry
- ●attached arm sockets
- ●Check glacial till, Devonian limestones, and Lake Superior gravels
Era
Mississippian
Type
echinoderm
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