ammonoid
English
editEtymology
editFrom the scientific name Ammonoidea.
Noun
editammonoid (plural ammonoids)
- An extinct cephalopod of the subclass †Ammonoidea (including ammonites).
- 2017 August 9, Mark Carnall, The Guardian[1]:
- Although the extinct externally shelled cephalopods ammonoids have an extensive fossil record, their soft tissues are very poorly known and, like extinct and living nautiloids, they are largely presumed to not have possessed an ink sac.
Adjective
editammonoid (comparative more ammonoid, superlative most ammonoid)
- Characteristic of an ammonite.