“…Odonata evolve more slowly than their neighbours in the tree. Ribosomal RNA analyses frequently recover Nonoculata [74,75,107,117,239,[242][243][244][245] Chiastomyaria [117,141,239], Dermaptera sister to Plecoptera [107,117,239], and mecopteran paraphyly [74,75,77,107,117,141,246]. The consistency of these results despite the differences in alignment and optimality criteria indicate that rRNA supports these relationships when analysed with existing methods, even though much larger datasets now contradict Nonoculata and mecopteran paraphyly.…”