2.1" Sauropod Dinosaur Stomach Stone Gastrolith Rock Gizzard Stone COA Turtle What is certain is that

What is certain is that Prognathodon was not the only mosasaur to adjust to this diet

For researchers and collectors

including crystal clusters

providing key insights into the evolutionary history of this order

either eating small animals like lizards or occasionally scavenging carrion

2.1" Sauropod Dinosaur Stomach Stone Gastrolith Rock Gizzard Stone COA Turtle What is certain is thatLocation: Cloverly Formation, Montana Weight: 2. 3 Ounces Dimensions: 2. 1 Inches Long, 1. 9 Inches Wide, 0. 8 Inches Thick Comes with a Certificate of Authenticity. The item pictured is the one you will receive. Gastrolith stones identified in the Cloverly Formation are actually polished stomach stones from large dinosaurs, particularly Sauropods such as Titanosaurs. These beautiful, rare stones, called gastroliths, are found in only a few locations