Myriochelata

The Myriochelata or Paradoxopoda, is a proposed grouping of arthropods comprising the Myriapoda (including millipedes and centipedes) and Chelicerata (including spiders and scorpions). It is the sister clade to the Tetraconata.

The evidence for this relationship between myriapods and chelicerates derives from comparisons of nuclear ribosomal RNA genes, mitochondrial ribosomal RNA genes, and protein-coding genes.[1][2] More recent molecular studies, however, favour grouping the myriapods with crustaceans and insects, rather than with the chelicerates, to make up the clade Mandibulata.[3][4]

References
  1. S. Richter (2002). "The Tetraconata concept: hexapod-crustacean relationships and the phylogeny of Crustacea". Organisms Diversity & Evolution. 2 (3): 217–237. doi:10.1078/1439-6092-00048.
  2. Casey W. Dunn; Andreas Hejnol; David Q. Matus; Kevin Pang; William E. Browne; Stephen A. Smith; Elaine Seaver; Greg W. Rouse; Matthias Obst; Gregory D. Edgecombe; Martin V. Sørensen; Steven H. D. Haddock; Andreas Schmidt-Rhaesa; Akiko Okusu; Reinhardt Møbjerg Kristensen; Ward C. Wheeler; Mark Q. Martindale; Gonzalo Giribet (2008). "Broad phylogenomic sampling improves resolution of the animal tree of life". Nature. 452 (7188): 745–749. doi:10.1038/nature06614. PMID 18322464.
  3. Jerome C. Regier; Jeffrey W. Shultz; Andreas Zwick; April Hussey; Bernard Ball; Regina Wetzer; Joel W. Martin; Clifford W. Cunningham (2010). "Arthropod relationships revealed by phylogenomic analysis of nuclear protein-coding sequences". Nature. 463 (7284): 1079–1083. doi:10.1038/nature08742. PMID 20147900.
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