Dinosaur Gastrolith - 1.633" Gut Stone - 150,000,000 Years Old rockinaboxatlasaurus Daniel Kirkwood noticed gaps in

Daniel Kirkwood noticed gaps in the Asteroid Belt at locations corresponding to specific fractions of Jupiter's orbit around the Sun

450" chunk of Libyan Desert Glass

back row left

The material was acquired from the private collection of a retired LA sound engineer

We’ve captured the Moon’s craters

Dinosaur Gastrolith - 1.633" Gut Stone - 150,000,000 Years Old rockinaboxatlasaurus Daniel Kirkwood noticed gaps inWithout 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 1. 633" 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