Rock Identifier

fossil

Dinosaur Skin Fossil

Fossilized dermis / epidermal impression

AI-generated identification · may be incorrect

Hardness varies by mineral replacement (typically Mohs 5-7); brown to dark amber color; dull to sub-vitreous luster; amorphous organic structure replaced by minerals like silica or pyrite.

Identified October 31, 2026More fossil →

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Physical properties

Hardness varies by mineral replacement (typically Mohs 5-7); brown to dark amber color; dull to sub-vitreous luster; amorphous organic structure replaced by minerals like silica or pyrite.

Formation & geological history

Formed when dinosaur skin was rapidly covered in fine sediment, preserving the scale impressions before rotting, typically dating from the Mesozoic Era.

Uses & applications

Highly prized by collectors, museums, and educational institutions for paleontological study and display.

Geological facts

Exceptional fossilization of soft tissue is extremely rare, requiring precise anoxic burial conditions.

Field identification & locations

Identified by repeating polygonal scale patterns (tubercles); commonly found in formations like the Hell Creek Formation in North America.

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