After Worthy, 1994, Feduccia, 1996, Holdaway, Worthy & Tennyson, 2001, Bunce, Worthy, Ford, Hoppitt, Willerslev, Drummond & Cooper, 2003, and Huynen, Millar, Scofield & Lambert, 2003

<==o †Dinornithiformes (Gadow, 1893) (moas; moalinnut)
   |--o †Dinornithidae (Owen, 1843) Bonaparte (great moas; isomoat)
   |  `--o †Dinornis Owen, 1843 [taxonomic history] (great moas; isomoat)
   |     |-- †D. novaezealandiae Owen, 1843 [taxonomic history] (North Island great moa)
   |     `-- †D. robustus Owen, 1846 [taxonomic history] (South Island great moa)
   `--o †Emeidae [Anomalopterygidae (Archey, 1941)] (lesser moas; pikkumoat)
      |--o †Emeinae
      |  |-- †Emeus crassus [incl. E. huttonii]
      |  `--o †Euryapteryx
      |     |-- †E. curtus [incl. †E. exilis]
      |     |?- †E. geranoides
      |     `?- †E. gravis
      `--o †Anomalopteryginae (Archey, 1941)
         |-- †Megalapteryx didinus [incl. M. benhami]
         |-- †Anomalopteryx didiformis [incl. A. oweni]
         `--o †Pachyornis
            |-- †P. elephantopus
            |?- †P. australis Oliver
            `-- †P. mappini [incl. P. septentrionalis]


Species of moa, and particulary genus Dinornis seems to have unusually large sexual dimorphism, which has caused different morphs to be classified as separate species (Worthy, 1994). Recent articles of Bunce et al (2003) and Huynen et al (2003) has demostrated this by using molecular methods of taxonomy. Because only the genus Dinornis was revisited, I have not chanced the status of other species of moas.