Definition of Ammonitoidea

1. n. pl. An extensive group of fossil cephalopods often very abundant in Mesozoic rocks. See Ammonite.



Medical Definition of Ammonitoidea

1. An extensive group of fossil cephalopods often very abundant in Mesozoic rocks. See Ammonite. Origin: NL, fr. Ammonite. Source: Websters Dictionary (01 Mar 1998)

Ammonitoidea Pictures

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Lexicographical Neighbors of Ammonitoidea

ammonification
ammonifications
ammonified
ammonifies
ammonify
ammonifying
ammonio-
ammonioalunite
ammonioborite
ammoniojarosite
ammonioleucite
ammonite
ammonites
ammonitic
ammonitiferous
ammonitoidea (current term)
ammonium
ammonium acetate
ammonium alum
ammonium benzoate
ammonium bicarbonate
ammonium bromide
ammonium carbamate
ammonium carbonate
ammonium chloride
ammonium compounds
ammonium ferric sulfate
ammonium hydroxide
ammonium ichthosulfonate
ammonium imine

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