# 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](https://www.museumize.com/collections/era-prehistoric-art-collection) and our [Natural History Collection](https://www.museumize.com/collections/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

## Details

- **Price:** 19.0 USD - 39.0 USD
- **Vendor:** Mini Museum
- **Type:** Rocks & Fossils
- **Tags:** authentic-fossil-specimens, Mini Museum, rocks-fossils, Shopify Collective

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Small | 19.00 USD | In stock |
| Large | 39.00 USD | In stock |

## Images

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

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> Source: [Museumize.com](https://www.museumize.com/products/dinosaur-gastrolith-gut-stone)
> Updated: 2026-07-23