sedimentary
Fossilized Gastropod in Limestone
Gastropoda (Class) in Calcium Carbonate (CaCO3)
AI-generated identification · may be incorrectHardness: 3 (limestone matrix); Color: Off-white, grey, tan; Luster: Dull/Earthy; Structure: Spiral/Planispiral shell mold; Cleavage: None/Irregular
- Hardness
- 3 (limestone matrix)
- Color
- Off-white, grey, tan
- Luster
- Dull/Earthy
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Physical properties
Hardness: 3 (limestone matrix); Color: Off-white, grey, tan; Luster: Dull/Earthy; Structure: Spiral/Planispiral shell mold; Cleavage: None/Irregular
Formation & geological history
Formed in shallow marine environments where snails were buried by calcium carbonate sediment. Most common from the Paleozoic to Mesozoic eras (65 to 500 million years ago).
Uses & applications
Educational purposes, scientific research (paleontology), and personal fossil collections.
Geological facts
Gastropods are one of the few groups of animals that have successfully transitioned from marine life to freshwater and terrestrial environments.
Field identification & locations
Look for distinctive spiral coils or 'snail-like' shapes embedded in sedimentary layers. Common in limestone quarries, road cuts, and creek beds.
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