Skip to content
Field database
Updated April 2026
696+ Fossil Entries
Oklahoma Ammonite fossil specimen
cephalopodMesozoicUpdated March 2026

Oklahoma Ammonite

Mesozoic

About Oklahoma Ammonite

The Oklahoma Ammonite is a cephalopod fossil dating to the 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.

“According to TroveRadar, Oklahoma Ammonite fossils from the Mesozoic are found across Oklahoma. TroveRadar's field database catalogs 696+ fossil entries for identification and collection guidance.

TroveRadar app

Save this route for offline field use.

Keep the route, notes, and access context connected to your offline field workflow.

Get App Details

Route stack

Turn Oklahoma Ammonite into a month, law, metro, and ground plan.

These links move the page out of taxonomy mode and back into trip planning, so users can answer when to go, where to start, and what legal layer to check before they leave the main species or find guide.

Law layer

Oklahoma state guide

Fossil collecting rules in Oklahoma 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 Cretaceous marine fossils, red beds, and stream gravels.

Open the law layer →

Identification Tips

  • planispiral coil
  • suture patterns
  • chambered shell
  • Check chalk beds, badlands mudstones, and river gravels

Where Found

Oklahoma

Take TroveRadar into the field

Carry the plan, the species notes, and the access checks outside.

Use the mobile app for offline reference, private find logging, route memory, and the working notes that matter after the browser window closes.

Get App Details

Related Fossils

North Dakota Ammonite

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.

cephalopod
South Dakota Ammonite

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.

cephalopod
Nebraska Ammonite

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.

cephalopod
Kansas Ammonite

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.

cephalopod
Montana Ammonite

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.

cephalopod
Idaho Ammonite

Idaho Ammonite

Mesozoic

Ammonite is a realistic Idaho 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.

cephalopod

Explore More

How do I identify a Oklahoma Ammonite fossil?
Oklahoma Ammonite fossils from the Mesozoic can be identified by: planispiral coil. suture patterns. chambered shell. Check chalk beds, badlands mudstones, and river gravels. They are most commonly found in Oklahoma.
Where are Oklahoma Ammonite fossils found?
Oklahoma Ammonite fossils are found in Oklahoma. Look in sedimentary rock formations dating to the Mesozoic era. The best collecting is typically found in exposed roadcuts, creek banks, and quarry sites.
How old are Oklahoma Ammonite fossils?
Oklahoma Ammonite fossils date to the Mesozoic. They are classified as cephalopod fossils in TroveRadar's database, which catalogs 696+ fossil entries across North America.
Is it legal to collect Oklahoma Ammonite fossils?
Fossil collecting laws vary by state and land ownership. Common invertebrate fossils are generally collectible on some public lands for personal use, but vertebrate fossils and collecting on protected lands may require permits. Always check local regulations before collecting. Use TroveRadar's State Guides for specific rules.