Colorado Inoceramid Clam
Late Cretaceous
About Colorado Inoceramid Clam
The Colorado Inoceramid Clam is a mollusk fossil dating to the Late Cretaceous. Inoceramid Clam is a realistic Colorado fossil profile built around large thin-shelled bivalve from western interior seaway deposits. In this state, success usually comes from learning Morrison outcrops, Green River beds, and uplifted marine limestones, then timing runoff, reservoir drawdown, surf cuts, or road work that exposes fresh fossil-bearing rock instead of hunting blindly.
“According to TroveRadar, Colorado Inoceramid Clam fossils from the Late Cretaceous are found across Colorado. TroveRadar's field database catalogs 696+ fossil entries for identification and collection guidance.”
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Colorado state guide
Fossil collecting rules in Colorado 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 Morrison dinosaur beds and Eocene lake fossils.
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Trail: Dinosaur Ridge
Fossil Bed • Site-specific opportunities, Historic landscape clues
Trail: Florissant Fossil Beds National Monument
Fossil Bed • Site-specific opportunities, Historic landscape clues
Location: Arapaho and Roosevelt National Forests
National Forest • Seasonal edible mushrooms, Common invertebrate fossils in float
Location: San Isabel National Forest
National Forest • Seasonal edible mushrooms, Common invertebrate fossils in float
Identification Tips
- ●broad shell plates
- ●concentric growth lines
- ●chalk or shale matrix
- ●Check Morrison outcrops, Green River beds, and uplifted marine limestones
Where Found
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