Ammonoid (Noun)
Meaning
One of the coiled chambered fossil shells of extinct mollusks.
Classification
Nouns denoting natural objects (not man-made).
Examples
- The ammonoid fossil was carefully extracted from the limestone rock to reveal its intricate spiral shape.
- The museum's collection of ammonoids included specimens from the Jurassic and Cretaceous periods.
- The geologist studied the ammonoid's suture patterns to determine its age and species.
- Ammonoids were a type of cephalopod that dominated the oceans during the Mesozoic era.
- The fossilized ammonoid shell was a prized find for the paleontologist, who had been searching for it for years.