Phragmacone (Noun)
Meaning
The thin conical chambered internal shell (either straight or curved) of a belemnite.
Classification
Nouns denoting animals.
Examples
- The phragmacone of the belemnite was well preserved, allowing scientists to study its internal structure.
- The curved phragmacone of the Jurassic belemnite was a distinctive feature of the species.
- Belemnites with straight phragmacones were more common in the Early Cretaceous period.
- The phragmacone of the belemnite was made up of many thin, concentric layers of calcite.
- Fossilized phragmacones of belemnites are often found in sedimentary rocks, providing valuable information about ancient marine ecosystems.