Spinosaurus Tooth Fossil

Physical Properties

Mohs hardness: 5 (Enamel); Color: Brown to tan; Luster: Dull to sub-vitreous; Structure: Conical, non-serrated, straight or slightly curved

Formation & Geological History

Formed via permineralization during the Cretaceous period (approx. 95-112 million years ago) specifically within the Kem Kem Group river systems of North Africa.

Uses & Applications

Paleontological study, educational exhibits, and private specimen collecting.

Geological Facts

Spinosaurus was one of the largest carnivorous dinosaurs, longer than T-Rex. Its teeth were conical specifically for gripping slippery aquatic prey like giant fish.

Field Identification & Locations

Identified by the absence of serrations and a vertical fluting texture. Commonly found in the Kem Kem Basin of Morocco. Field identification involves looking for the 'striations' along the length of the tooth.

Identified on: 4/15/2026

Mode: Standard