nautiloid

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Related to Nautiloidea: Nautiloids

nautiloid

any mollusc of the subclass Nautiloidea, a group of cephalopods related to the fossil ammonites, which produce a large spiral chambered shell, in the last chamber of which the animal lives.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
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References in periodicals archive ?
The old cephalopods are virtually extinct, their last and only living representative being the shell-bearing Nautilus (Nautiloidea).
Phylogeny of the Nautiloidea. Palaeontologia Polonica, 45, 1-219.