Skip to product information
1 of 12

Brachiopod Fossil

Brachiopod Fossil

    This ribbed shell is a fossil of the order Rhynchonellida.

    These brachiopods have existed since the Ordovician period 485 million years ago. Their population was severely diminished during the Permian–Triassic extinction event 252 million years ago, but Rhynchonellida became the most abundant brachiopod group during the Mesozoic.

    This group is identifiable by their deep ribbed surfaces and short hinges, which usually come to a point. These bivalves were the first to evolve teeth sockets, which help to align the two halves as they close and make it harder for a predator to open the shell by twisting the valves.

    It is hypothesized that the radiating ribbed pattern helps regulate the flow of water in and out of the shell.

    This fossil is millions of years old, but this order still exists today, albeit not nearly as abundant as they once were.

    Location: Morocco

    Age: ~70 million years (Late Cretaceous) 

    Size: < 10g

    Please note: This listing is for one brachiopod fossil. Photos shown are representative of what you will receive, please allow for variation. 

      Regular price $14.00
      Regular price Sale price $14.00
      Sale Sold out
      Shipping calculated at checkout.
      Matter Subscriber Price:

      View full details


      We only list 100% verified authentic items. We work with reputable collectors, and regularly consult with our network of scientists and experts.

      • Free Shipping

        Orders ≥$50 qualify for free US shipping
        Orders ≥$100 qualify for free global shipping

      • Secure Payments

        Pay how you like: credit card, PayPal, After Pay, Shop Pay, Venmo, Apple/Google/Meta Pay & crypto

      • Simple Returns

        Change your mind? No problem. Enjoy easy returns within 30 days.

      Customer Reviews

      Be the first to write a review

      similar items_


      You deserve better than craft store science products. And we think learning is more impactful when you're holding a tangible piece of what you're learning about. That's why Stemcell exists.

      We're dedicated to providing the best scientific products available—whether they're fragments of scientific importance, experimental activities, or just interesting things that scratch your curiosity itch.

      With every new product launch, our list of new ideas gets longer rather than shorter. So check in often for our latest projects, and thanks for being a part of our endeavor to make the world a smarter place to live.

      Believe in yourself; for everything else, there's science.