0.4" Postosuchus Rauisuchid Archosaur Fossil Tooth Chinle Formation AZ COA Display

Location: Chinle Formation, Arizona (Private Land Origin) 

Weight: 0.3 Ounces 

Dimensions: 0.4 Inches Long, 0.2 Inches Wide, 0.1 Inches Thick

Comes with a Certificate of Authenticity. 

Comes with a Free Display.

The item pictured is the one you will receive. 

This is a genuine fossil.

Late Triassic, 237 to 201 million years old.

Postosuchus was a giant Late Triassic rauisuchid archosaur, living approximately 237 to 201 million years ago. Belonging to the archosaur clade, which also includes crocodilians and dinosaurs, Postosuchus was among the largest predators of its era. It measured around 4 to 5 meters in length and had powerful jaws filled with sharp, serrated teeth, perfectly adapted for hunting and consuming prey.

Postosuchus had a robust body with strong limbs and a long tail, indicating that it was a swift and agile predator capable of chasing down prey. Its skull was equipped with large, serrated teeth designed for tearing flesh, suggesting that it primarily fed on other animals. The anatomy of Postosuchus shares similarities with both crocodilians and dinosaurs, reflecting its position as an early member of the archosaur lineage.

This remarkable Postosuchus tooth captures a slice of Triassic dominance—a relic from when rauisuchids ruled as apex predators across ancient Pangaea. Discovered in Arizona's Chinle Formation, this fossil reveals the raw power of a creature that hunted smaller reptiles and proto-mammals with ruthless efficiency. Each specimen tells the story of an evolutionary titan whose ecological reign shaped the reptilian world before dinosaurs took command.