Wisconsin Orthocone Nautiloid Identification
Orthocone Nautiloid is a realistic Wisconsin fossil profile built around straight shelled cephalopod preserved in limestone and dolostone. 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
- ●long cone shape
- ●chamber partitions
- ●central siphuncle
- ●Check glacial till, Devonian limestones, and Lake Superior gravels
Era
Ordovician-Silurian
Type
cephalopod
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