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Search Results: Nautiloidea

A group of externally shelled cephalopods, represented by the two living genera, Nautilus, known since the 1500s,...



= Encyclopedia Article; = Research Update
Figure 1.Common types of nautiloid conchs. (After C. Teichert et al., Cephalopoda: General features, in R. C. Moore, ed., Treatise on Invertebrate Paleontology, pt. K, Mollusca 3, Geological Society of America and University of Kansas Press, 1964)
From Encyclopedia article 'Nautiloidea'
Figure 2.Internal structure of Nautilus macromphalus. (After P. D. Ward, The Natural History of Nautilus, Allen & Unwin, 1987)
From Encyclopedia article 'Nautiloidea'