fossil
Spinosaurid Dinosaur Tooth
Spinosaurus aegyptiacus (fossilized)
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
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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.
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