Talk:Protostomia

Dispute

• the position of Platyzoa is disputed. It is either (1) a derived (and secondarily simplified) clade of Lophotrochozoa (Passamaneck & Halanych, 2006); or (2) sister taxon to Lophotrochozoa, together forming the clade Spiralia (Helmkampf et al., 2008). Option (2) has been adopted herein.

References

• Helmkampf, M.; Bruchhaus, I.; Hausdorf, B. 2008: Multigene analysis of lophophorate and chaetognath phylogenetic relationships. Molecular phylogenetics and evolution, 46: 206-214.
• Passamaneck, Y.; Halanych, K.M. 2006: Lophotrochozoan phylogeny assessed with LSU and SSU data: evidence of lophophorate polyphyly. Molecular phylogenetics and evolution, 40: 20–28.

Old talk

Chaetognaths are Deuterostomia, aren't they? I wouldn't know of any doubt about that.

Recent studies have shown that they are in fact Protostomia

• [1] --Chb 22:17, 26 Nov 2004 (UTC)

more divisions?

Are the lophotrochozoa and ecdysozoa clades/divisions for protostomia not included for a reason?

Dinocarida

Is Dinocarida a class or a phylum? It is currently being treated as a class of the phylum 'Problematica' and a phylum in its own right. Also,is Dinocarida a sort of catch-all for Cambrian invertebrates that don't have known living relatives?

--Rutledge 21:45, 13 March 2007 (EST)