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Reference.org
Articulata (superphylum)
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<p>The Articulata is a proposed higher taxon of animals with segmented bodies, consisting of <a href="/facts/Annelida/PQvb7NAM">Annelida</a> and <a href="/facts/Panarthropoda/hMmch1Nz">Panarthropoda</a>. This theory states that these groups are descended from a common segmented ancestor. The Articulata hypothesis is an alternative to the hypothesis that <a href="/facts/Ecdysis/P4SN14xI">ecdysis</a> (the shedding of outer cuticle) is a primitive characteristic – this would place Panarthropoda in the group <a href="/facts/Ecdysozoa/L3hxqnxA">Ecdysozoa</a>. </p>