0 an extinct sea creature (= one that no longer exists) often found as a fossil (= an animal turned into rock), with a flat, spiral shell
1 an extinct (= no longer existing) sea creature often found as a fossil (= animal or plant preserved in rock)
"What's happened?" said the vicar, putting the ammonite on the loose sheets of his forth-coming sermon.
The fossil ammonites found in India include at least fifteen species.
This siltstone unit lies upon a conspicuous erosion surface highlighted by angular chips of phosphatized pebbles and ammonites.
The central part begins with ammonite-bearing crinoidal limestones and black pillow basalts.
Cladistic techniques have been applied to many fossil groups but ammonites remain largely understudied in this way.
Detailed collecting through 15 sections across the basin has facilitated a major revision of the ammonite zonation.
The fauna is limited to ammonites and a species of epifaunal bivalve.
