fossil

Fossilized Shark Tooth (Otodus)

Otodus obliquus

AI-generated identification · may be incorrect

Triangular shape, hardness 5 on Mohs scale, typically tan to reddish-brown (depending on mineral replacement), waxy to dull luster, dense calcium phosphate structure.

Identified July 6, 2026More fossil →

Explore Fossilized Shark Tooth (Otodus) in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Triangular shape, hardness 5 on Mohs scale, typically tan to reddish-brown (depending on mineral replacement), waxy to dull luster, dense calcium phosphate structure.

Formation & geological history

Formed during the Paleocene and Eocene epochs (approx. 40-60 million years ago) in shallow marine environments. The organic material is replaced by minerals like silica or phosphate over time.

Uses & applications

Primarily collected as paleontological specimens, used in decorative jewelry, and studied for educational purposes in evolutionary biology.

Geological facts

Otodus is an extinct genus of large mackerel sharks and is considered a direct ancestor to the famous Megalodon. Some specimens can reach up to 4 inches in length.

Field identification & locations

Identified by its thick triangular crown and distinct side cusplets (though often worn off). Commonly found in the phosphate mines of Morocco. Collectors look for sharp edges and intact roots.