Temporal range:
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Subkingdom: Eumetazoa
Clade: ParaHoxozoa
Clade: Bilateria
Clade: Nephrozoa
(unranked): Protostomia
(unranked): Spiralia
sensu Edgecombe et al. 2011

The Spiralia are a morphologically diverse clade of protostome animals, including within their number the molluscs, annelids, platyhelminths and other taxa.[1] The term Spiralia is applied to those phyla that exhibit canonical spiral cleavage, a pattern of early development found in most (but not all) members of the Lophotrochozoa.[2]

  1. ^ Giribet, G. (April 2008). "Assembling the lophotrochozoan (=spiralian) tree of life". Philosophical Transactions of the Royal Society B: Biological Sciences. 363 (1496): 1513–22. doi:10.1098/rstb.2007.2241. PMC 2614230. PMID 18192183.
  2. ^ "Explanations.html". Archived from the original on 2013-02-07. Retrieved 2009-06-28.

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