fossil

Spinosaurid Dinosaur Tooth

Spinosaurus aegyptiacus (fossilized)

AI-generated identification · may be incorrect

Hardness: Approx. 5 (mineralized enamel); Color: Brown to rust-orange due to iron oxidation; Luster: Sub-vitreous to dull; Structure: Conical, non-serrated with longitudinal fluting (ridges).

Hardness: Approx
Color: Brown to rust-orange due to iron oxidation
Luster: Sub-vitreous to dull

Identified April 6, 2026More fossil →

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Physical properties

Hardness: Approx. 5 (mineralized enamel); Color: Brown to rust-orange due to iron oxidation; Luster: Sub-vitreous to dull; Structure: Conical, non-serrated with longitudinal fluting (ridges).

Formation & geological history

Formed through permineralization during the Cretaceous period (approx. 95-100 million years ago). Found in the Kem Kem Group of Morocco, which was once a lush river system.

Uses & applications

Paleontological study, educational displays, and private fossil collection. Small specimens are often used in wire-wrap jewelry.

Geological facts

Unlike most theropod teeth, Spinosaurus teeth are conical and lack serrations, adapted for catching slippery fish like the giant Onchopristis (prehistoric sawfish).

Field identification & locations

Identify by its distinct conical shape and vertical ridges. These are very common in fossil shops because Spinosaurus shed teeth frequently and they preserved well in the Moroccan riverbeds.