ammonoidn.
A fossil cephalopod of the order Ammonoidea, comprising the ammonites and related genera.
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the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Cephalopoda > [noun] > order Tetrabranchiata > family Ammonitidae > member of
hamite1831
ceratite1847
ammonoid1884
1884 A. Hyatt in Proc. Boston Soc. Nat. Hist. XXII. 303 The ventral sutures are interrupted by the funnels as in Ammonoids.
1889 H. A. Nicholson & R. Lydekker Man. Palæontol. (ed. 3) I. 849 The septal ‘necks’ of the Ammonoids are variable in their development.
1912 Brit. Museum Return 169 The collection of Austrian Triassic Ammonoids.
This entry has not yet been fully updated (first published 1933; most recently modified version published online March 2011).
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