fossilized shell
Ancient calcified casing
A fossilized shell is the preserved remains or impression of a shell from an ancient mollusk or other shelled creature, typically millions of years old.
The original shell material has usually been replaced by minerals or left an imprint in surrounding rock.
Fossilized shells are among the most common fossils found, appearing in sedimentary rocks worldwide, and they help scientists date geological formations and understand ancient marine environments.
We found a fossilized shell embedded in the limestone cliff.
- ammoniteExtinct spiral-shelled cephalopod
- trilobiteExtinct segmented marine arthropod
- nautilusChambered marine mollusk
- petrifiedSolidified or fear-paralyzed
- ancientVery old indeed
ancient history · sediment · limestone · imprint · turned to stone · prehistoric · prehistoric life · mollusk · calcium · calcium carbonate · spiral · sea creature · ocean · extinct · paleontology · brachiopod · ocean floor · calcified
fossil, fossils, fossilize, fossilise, fossilization, fossilisation, shell, shells, shelled