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Planulozoa

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Planulozoa is a proposed clade including the Cnidaria (sea anemones and jellyfish) and the Bilateria (all the more complex animals including flatworms, insects and vertebrates). The clade excludes the Ctenophora (comb jellies).[1][2][3]

Metazoa

Glass sponges

Demosponges

Calcareous sponges

Eumetazoa

Ctenophora (comb jellies)

Planulozoa
Cnidaria

Anthozoa
(sea anemones and corals)

Medusozoa

Hydrozoa
(Hydra, siphonophores, etc.)

Cubozoa
(box jellies)

Staurozoa

"Scyphozoa"
(jellyfish, excluding
Staurozoa)

Placozoa

Bilateria

Myxozoa

Other Bilateria
(more complex)

Family tree of Cnidaria and the origins of animals[3][4][5]

References

  1. ^ Andreas Hejnol; Mark Q. Martindale (2008). "Acoel development supports a simple planula-like urbilaterian". Philosophical Transactions of the Royal Society B. 363 (1496): 1493–1501. doi:10.1098/rstb.2007.2239. PMC 2614228. PMID 18192185. {{cite journal}}: Unknown parameter |lastauthoramp= ignored (|name-list-style= suggested) (help)
  2. ^ Jaume Baguñà, Pere Martinez, Jordi Paps & Marta Riutort (2008). "Back in time: a new systematic proposal for the Bilateria". Philosophical Transactions of the Royal Society B. 363 (1496): 1481–1491. doi:10.1098/rstb.2007.2238. PMC 2615819. PMID 18192186.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  3. ^ a b Andreas Wallberg, Mikael Thollesson, James S. Farris & Ulf Jondelius (2004). "The phylogenetic position of the comb jellies (Ctenophora) and the importance of taxonomic sampling". Cladistics. 20 (6): 558–578. doi:10.1111/j.1096-0031.2004.00041.x.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  4. ^ A. G. Collins (2002). "Phylogeny of Medusozoa and the evolution of Cnidarian life cycles" (PDF). Journal of Evolutionary Biology. 15 (3): 418–432. doi:10.1046/j.1420-9101.2002.00403.x.
  5. ^ C. Borchiellini, M. Manuel, E. Alivon, N. Boury-Esnault, J. Vacelet & Y. Le Parco (2001). "Sponge paraphyly and the origin of Metazoa". Journal of Evolutionary Biology. 14 (1): 171–179. doi:10.1046/j.1420-9101.2001.00244.x.{{cite journal}}: CS1 maint: multiple names: authors list (link)