sedimentary
Trilobite Fossil (Flexicalymene)
Flexicalymene ouzregui
Hardness: 3-4 (matrix usually limestone or shale); Color: Earthy brown, tan, and orange-tinted; Luster: Dull or matte; Structure: Segmented exoskeleton with cephalon, thorax, and pygidium segments.
- Hardness
- 3-4 (matrix usually limestone or shale)
- Color
- Earthy brown, tan, and orange-tinted
- Luster
- Dull or matte
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Physical properties
Hardness: 3-4 (matrix usually limestone or shale); Color: Earthy brown, tan, and orange-tinted; Luster: Dull or matte; Structure: Segmented exoskeleton with cephalon, thorax, and pygidium segments.
Formation & geological history
Formed during the Ordovician period (approx. 450 million years ago) through the process of permineralization in a shallow marine environment.
Uses & applications
Educational resources, museum displays, and a staple for private fossil collections. Not used in industry or construction.
Geological facts
Trilobites are extinct marine arthropods. They were among the most successful of all early animals, roaming the oceans for over 270 million years before the Permian extinction.
Field identification & locations
Identified by its distinctive three-lobed, segmented body. Common in the Anti-Atlas Mountains of Morocco. Collectors should look for symmetry and lack of artificial 'carved' features.
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