2.1" Sauropod Dinosaur Stomach Stone Gastrolith Rock Gizzard Stone COA Diogenite Estimates place it at approximately

Estimates place it at approximately one and a half times larger than the biggest recorded great white shark

these stones are found primarily in the northwestern and northeastern regions of Michigan's Lower Peninsula

insect fossils remain comparatively uncommon within Green River strata

This trait supports interpretations of a fully aquatic mode of life

2.1" Sauropod Dinosaur Stomach Stone Gastrolith Rock Gizzard Stone COA Diogenite Estimates place it at approximatelyLocation: Cloverly Formation, Montana Weight: 2. 9 Ounces Dimensions: 2. 1 Inches Long, 1. 8 Inches Wide, 1. 3 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