Verified by TroveRadar Field Database
Updated March 2026
795+ Fossil Entries
Texas Devil's Toenail Oyster fossil specimen
molluskJurassic-CretaceousUpdated March 2026

Texas Devil's Toenail Oyster

Jurassic-Cretaceous

About Texas Devil's Toenail Oyster

The Texas Devil's Toenail Oyster is a mollusk fossil dating to the Jurassic-Cretaceous. Devil's Toenail Oyster is a realistic Texas fossil profile built around curved Gryphaea oyster common in marine clays and chalky beds. In this state, success usually comes from learning red beds, chalk cuts, and dry creek gravels, then timing runoff, reservoir drawdown, surf cuts, or road work that exposes fresh fossil-bearing rock instead of hunting blindly.

“According to TroveRadar, Texas Devil's Toenail Oyster fossils from the Jurassic-Cretaceous are found across Texas. TroveRadar's field database catalogs 795+ fossil entries for identification and collection guidance.

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Identification Tips

  • hooked lower valve
  • thick shell
  • gray marl matrix
  • Check red beds, chalk cuts, and dry creek gravels

Where Found

Texas

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Explore More

How do I identify a Texas Devil's Toenail Oyster fossil?
Texas Devil's Toenail Oyster fossils from the Jurassic-Cretaceous can be identified by: hooked lower valve. thick shell. gray marl matrix. Check red beds, chalk cuts, and dry creek gravels. They are most commonly found in Texas.
Where are Texas Devil's Toenail Oyster fossils found?
Texas Devil's Toenail Oyster fossils are found in Texas. Look in sedimentary rock formations dating to the Jurassic-Cretaceous era. The best collecting is typically found in exposed roadcuts, creek banks, and quarry sites.
How old are Texas Devil's Toenail Oyster fossils?
Texas Devil's Toenail Oyster fossils date to the Jurassic-Cretaceous. They are classified as mollusk fossils in TroveRadar's database, which catalogs 795+ fossil entries across North America.
Is it legal to collect Texas Devil's Toenail Oyster 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.