Lophotrochozoa

The Lophotrochozoa has basal Cycliophora and Mollusca groups, and more derived Lophophorate, Nemertea and Annelida groups.[4][5]

With the introduction of Platytrochozoa and Rouphozoa, one candidate phylogeny is pictured below – though other studies recover a range of alternative possibilities:[6][7][8][9][10][11][12][13]

A number of fossil taxa can be identified as early Lophotrochozoans, even if their precise affinity remains contested. However, relevant Cambrian fossils are debated.

The clade Lophotrochozoa is named after the two distinct characteristics of its members; the feeding structure lophophore, which is a ciliated crown of tentacles surrounding a mouth, and the developmental stage trochophore larvae. Lophophorata such as Brachiozoa and Bryozoa have lophophores, while members of Trochozoa such as molluscs and annelids have trochophores, although some may have none.[14][15]

Wikispecies has information related to Lophotrochozoa

• Podsiadlowski, Lars; Braband, Anke; Struck, Torsten H; von Döhren, Jörn; Bartolomaeus, Thomas (2009). "Phylogeny and mitochondrial gene order variation in Lophotrochozoa in the light of new mitogenomic data from Nemertea". BMC Genomics. 10 (1): 364. doi:10.1186/1471-2164-10-364. PMC 2728741. PMID 19660126.