Dinosaur Gastrolith Gut Stone - Authentic Morrison Formation Fossil Specimen - Large

This authentic dinosaur gastrolith fossil in the large size is a real Jurassic Period gut stone from the Morrison Formation of Colorado - a polished, rounded stone that once resided in the digestive system of a sauropod or other large dinosaur. At 2 in to 4 in (5 cm to 10 cm), the large gastrolith is a substantial, hand-holdable specimen that conveys the scale of the digestive process it participated in.

A Large Stone from a Large Dinosaur's Gut

This is not a cast. This is a real Jurassic gastrolith - polished smooth by the muscular action of a dinosaur's gizzard over years of use, then preserved in the Morrison Formation sediments for 150 million years. At 2 to 4 inches, this is the more commanding display piece of the two sizes - heavy enough to feel significant, smooth enough to hold comfortably. Ships in a sturdy carton with an informational card.

The Authentic Dinosaur Gastrolith - Large for Impact and Display

Each specimen includes a Mini Museum certificate of authenticity and informational display card. Explore more in our Prehistoric Collection and our Natural History Collection.

Product Details

• SKU: 80-112-0022-201-36
• Size: Large - 2 in to 4 in (5 cm to 10 cm)
• Formation: Morrison Formation, Colorado
• Age: Jurassic Period
• Shipping: Sturdy carton with informational card
• Includes: Certificate of authenticity