After Giribet et al., 2001 and Vaccarl, et al., 2004
<==o Arthropoda (niveljalkaiset) |-- Loboboda (käsnäjalkaiset; lobopods) `--+-- Tardigrada (karhukaiset; waterbears) `--o Euarthropoda |-- Pycnogonida (merilukit) `--+-- Euchelicerata (hämähäkkieläimet) `--o Mandibulata Snodgrass, 1938 () |--o †Euthycarcinoidea Gall & Grauvogel, 1964 | `--o †Euthycarciniformes Starobogatov, 1988 | |-- †Apankura machu Vaccarl, Edgecombe & Escudero, 2004 | `== other euthycercinoids `--+-- Myriapoda [Millipedia] (myriapods; tuhatjalkaiset) `--o Pancrustacea |-- Hexapoda (insects; hyönteiset) `-- Crustacea (crustaceans; äyriäiset)
Reference(s):
- Giribet, G., Edgecombe, G. D. & Wheeler, W. C., 2001: Arthropod phylogeny based on eight molecular loci and morphology.
–Nature: Vol. 413, pp. 157-161 - Vaccarl, N. E., Edgecombe, G. D. & Escudero, C., 2004: Cambrian origins and affinities of an enigmatic fossil group of arthropods.
–Nature: Vol. 430, pp. 554-557