Utah Ammonite
Mesozoic
About Utah Ammonite
The Utah Ammonite is a cephalopod fossil dating to the Mesozoic. Ammonite is a realistic Utah fossil profile built around coiled marine shell with complex sutures from warm Cretaceous seas. 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, Utah Ammonite fossils from the Mesozoic are found across Utah. TroveRadar's field database catalogs 696+ fossil entries for identification and collection guidance.”
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Timing layer
Monthly state routes
Law layer
Utah state guide
Fossil collecting rules in Utah 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 outcrops, trilobite shales, and petrified wood.
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Place layer
Trail and ground routes
Location: Manti-La Sal National Forest
National Forest • Seasonal edible mushrooms, Common invertebrate fossils in float
Location: Dixie National Forest
National Forest • Seasonal edible mushrooms, Common invertebrate fossils in float
Location: Fishlake National Forest
National Forest • Seasonal edible mushrooms, Common invertebrate fossils in float
Location: Uinta-Wasatch-Cache National Forest
National Forest • Seasonal edible mushrooms, Common invertebrate fossils in float
Identification Tips
- ●planispiral coil
- ●suture patterns
- ●chambered shell
- ●Check Morrison outcrops, Green River beds, and uplifted marine limestones
Where Found
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Related Fossils
North Dakota Ammonite
Mesozoic
Ammonite is a realistic North Dakota fossil profile built around coiled marine shell with complex sutures from warm Cretaceous seas. In this state, success usually comes from learning chalk beds, badlands mudstones, and river gravels, then timing runoff, reservoir drawdown, surf cuts, or road work that exposes fresh fossil-bearing rock instead of hunting blindly.
South Dakota Ammonite
Mesozoic
Ammonite is a realistic South Dakota fossil profile built around coiled marine shell with complex sutures from warm Cretaceous seas. In this state, success usually comes from learning chalk beds, badlands mudstones, and river gravels, then timing runoff, reservoir drawdown, surf cuts, or road work that exposes fresh fossil-bearing rock instead of hunting blindly.
Nebraska Ammonite
Mesozoic
Ammonite is a realistic Nebraska fossil profile built around coiled marine shell with complex sutures from warm Cretaceous seas. In this state, success usually comes from learning chalk beds, badlands mudstones, and river gravels, then timing runoff, reservoir drawdown, surf cuts, or road work that exposes fresh fossil-bearing rock instead of hunting blindly.
Kansas Ammonite
Mesozoic
Ammonite is a realistic Kansas fossil profile built around coiled marine shell with complex sutures from warm Cretaceous seas. In this state, success usually comes from learning chalk beds, badlands mudstones, and river gravels, then timing runoff, reservoir drawdown, surf cuts, or road work that exposes fresh fossil-bearing rock instead of hunting blindly.
Oklahoma Ammonite
Mesozoic
Ammonite is a realistic Oklahoma fossil profile built around coiled marine shell with complex sutures from warm Cretaceous seas. In this state, success usually comes from learning chalk beds, badlands mudstones, and river gravels, then timing runoff, reservoir drawdown, surf cuts, or road work that exposes fresh fossil-bearing rock instead of hunting blindly.
Montana Ammonite
Mesozoic
Ammonite is a realistic Montana fossil profile built around coiled marine shell with complex sutures from warm Cretaceous seas. In this state, success usually comes from learning dinosaur-bearing mudstones, glacial gravels, and marine shales, then timing runoff, reservoir drawdown, surf cuts, or road work that exposes fresh fossil-bearing rock instead of hunting blindly.