KnowraAmmoniteLinked fromLinked fromThe 19 pages that link to Ammonite, each with the reason it gives.All 19Broader topic 6Related 11Compared with 2Cretaceous–Paleogene extinction eventBroader topic: Their extinction shows the event’s reach across marine ecosystems.Index fossilBroader topic: Rapidly evolving ammonite groups provide classic index fossils for Mesozoic rocks.Mesozoic Marine RevolutionBroader topic: Their shell forms and repaired injuries provide evidence of life under predation.Alvarez hypothesisBroader topic: Their extinction shows the crisis extended beyond terrestrial dinosaurs.Mollusc shellBroader topic: Ammonites exemplify the elaborate chambered shells found in extinct molluscan groups.Evolution of molluscsBroader topic: Their diverse shells document a major radiation and eventual extinction of cephalopods.