The story
From the scientific name Ammonoidea, equivalent to Ammon + -oid.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: An extinct cephalopod of the subclass †Ammonoidea (including ammonites). Full definition →
From the scientific name Ammonoidea, equivalent to Ammon + -oid.
Etymology from Wiktionary, CC BY-SA 4.0.