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WikiPedia: Động_vật_Chân_khớp http://www.samuseum.sa.gov.au/Journals/TRSSA/TRSSA... http://www.amonline.net.au/palaeontology/pdf/girib... http://www.biomedcentral.com/1471-2148/7/S2/S8 http://gsa.confex.com/gsa/2003AM/finalprogram/abst... http://books.google.com/?id=8WkjD3L_avQC&pg=PA53&d... http://books.google.com/?id=AyXPQzEwqPIC&pg=PA9&lp... http://www.insectlifeforms.com/Phylums488/JOINTED_... http://www.newscientist.com/channel/life/dn14903-f... http://www.senckenberg.de/files/content/forschung/... http://biosys-serv.biologie.uni-ulm.de/Downloadfol...