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Dunn, C. W.; Hejnol, A.; Matus, D. Q.; Pang, K.; Browne, W. E.; Smith, S. A.; Seaver, E.; Rouse, G. W. et al. (2008). "Broad phylogenomic sampling improves resolution of the animal tree of life". Nature452 (7188): 745–749. doi:10.1038/nature06614. பப்மெட்:18322464. Bibcode: 2008Natur.452..745D.
Struck, T. H.; Paul, C.; Hill, N.; Hartmann, S.; Hösel, C.; Kube, M.; Lieb, B.; Meyer, A. et al. (2011). "Phylogenomic analyses unravel annelid evolution". Nature471 (7336): 95–98. doi:10.1038/nature09864. பப்மெட்:21368831. Bibcode: 2011Natur.471...95S.
Dunn, C. W.; Hejnol, A.; Matus, D. Q.; Pang, K.; Browne, W. E.; Smith, S. A.; Seaver, E.; Rouse, G. W. et al. (2008). "Broad phylogenomic sampling improves resolution of the animal tree of life". Nature452 (7188): 745–749. doi:10.1038/nature06614. பப்மெட்:18322464. Bibcode: 2008Natur.452..745D.
Bourlat, S.; Nielsen, C.; Economou, A.; Telford, M. (2008). "Testing the new animal phylogeny: A phylum level molecular analysis of the animal kingdom". Molecular Phylogenetics and Evolution49 (1): 23–31. doi:10.1016/j.ympev.2008.07.008. பப்மெட்:18692145.
Struck, T. H.; Paul, C.; Hill, N.; Hartmann, S.; Hösel, C.; Kube, M.; Lieb, B.; Meyer, A. et al. (2011). "Phylogenomic analyses unravel annelid evolution". Nature471 (7336): 95–98. doi:10.1038/nature09864. பப்மெட்:21368831. Bibcode: 2011Natur.471...95S.