Dinosaur Gastrolith - SOLD 2.397" Gut Stone - 150,000,000 Years Old rockinaboxbandediron In an instant

In an instant

the phytosaur is far older and perhaps more frightening than the aquatic reptiles we know today

This youth t-shirt celebrates the unique mathematical beauty of these animals

Temporal Range:  Late Jurassic

with species evolved for hunting in schools

Dinosaur Gastrolith - SOLD 2.397" Gut Stone - 150,000,000 Years Old rockinaboxbandediron In an instantWithout proper digestive systems, many dinosaurs would ingest stones to aid the breakdown of food in their gut. Known scientifically as gastroliths, the dinosaurs would eventually pass these stones, which would then become fossilized. This specimen is a 2. 397" dinosaur gastrolith from the Morrison Formation in Colorado. It ships in a protective carton, ready for display right out of the box. A specimen card that doubles as a certificate of