Triceratops Frill - SOLD 4.289" 346.47g rockinaboxtigeriron This intriguing mineral concretion is

This intriguing mineral concretion is known as a septarian nodule

twice the speed of sound

77" polished Phylloceras fossil from Madagascar

We loved it so much that we 3D scanned the original fossil and crafted a design that would make for a wonderful conversation piece

the clear winner of the Skyscraper Race of the 1930s

Triceratops Frill - SOLD 4.289" 346.47g rockinaboxtigeriron This intriguing mineral concretion isTriceratops was one of the last dinosaurs to appear in the Late Cretaceous. Like other members of the Ceratopsid family, these large quadrupeds sported bony frills, horns, and beak like mouths. This specimen is a 4. 289" fossilized piece of a Triceratops Frill, recovered on private land in South Dakota from the Hell Creek Formation. The material weighs 346. 47g. It dates back over 64,000,000 years to the Cretaceous and is an iconic piece of the famous