Philippe H, Derelle R, Lopez P, et al. (April 2009). «Phylogenomics revives traditional views on deep animal relationships». Curr. Biol.19 (8): 706–12. doi:10.1016/j.cub.2009.02.052. PMID19345102.
Chen, J.-Y.; Bottjer, D.J.; Oliveri, P.; Dornbos, S.Q.; Gao, F.; Ruffins, S.; Chi, H.; Li, C.-W. και άλλοι. (2005). «Small bilaterian fossils from 40 to 55 million years before the Cambrian». Science305 (5681): 218–222. doi:10.1126/science.1099213. PMID15178752. Bibcode: 2004Sci...305..218C.
harvard.edu
adsabs.harvard.edu
Chen, J.-Y.; Bottjer, D.J.; Oliveri, P.; Dornbos, S.Q.; Gao, F.; Ruffins, S.; Chi, H.; Li, C.-W. και άλλοι. (2005). «Small bilaterian fossils from 40 to 55 million years before the Cambrian». Science305 (5681): 218–222. doi:10.1126/science.1099213. PMID15178752. Bibcode: 2004Sci...305..218C.
nih.gov
ncbi.nlm.nih.gov
Philippe H, Derelle R, Lopez P, et al. (April 2009). «Phylogenomics revives traditional views on deep animal relationships». Curr. Biol.19 (8): 706–12. doi:10.1016/j.cub.2009.02.052. PMID19345102.