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A polyplacophoran (chiton)
Epimenia verrucosa.jpg
The aplacophoran Epimenia
Scientific classification e
Kingdom: Animalia
Phylum: Mollusca
Clade: Aculifera
Hatschek, 1891

Aculifera is a proposed clade of molluscs incorporating those groups that have no conch or shell, that is, the Polyplacophora, Caudofoveata (=Chaetodermomorpha) and Solenogastres (=Neomeniomorpha).[1] It is sister to the Conchifera.


  1. ^ Sigwart, J. D.; Sutton, M. D. (Oct 2007). "Deep molluscan phylogeny: synthesis of palaeontological and neontological data". Proceedings of the Royal Society B: Biological Sciences. 274 (1624): 2413–2419. doi:10.1098/rspb.2007.0701. PMC 2274978Freely accessible. PMID 17652065.  For a summary, see "The Mollusca". University of California Museum of Paleontology. Retrieved 2 October 2008.