1.3" Sauropod Dinosaur Stomach Stone Gastrolith Rock Gizzard Stone COA Nanotyrannus 3 Ounces (Display)

3 Ounces (Display)

Aragonite and calcite are known as polymorphs

The rapid diversification of complex life

leading to the loss of around 90% of marine species at that time

1.3" Sauropod Dinosaur Stomach Stone Gastrolith Rock Gizzard Stone COA Nanotyrannus 3 Ounces (Display)Location: Cloverly Formation, Montana Weight: 0. 9 Ounces Dimensions: 1. 3 Inches Long, 1. 2 Inches Wide, 0. 9 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