Euryapteryx pygmaeus Hutton 1891 non Pachyornis pygmaeus Hutton 1895
Emeus gravipes Lydekker, 1891
Euryapteryx gravipes (Lydekker 1891) Oliver 1930
Euryapteryx compacta Hutton 1893
Emeus crassus Parker 1895 non (Owen 1846) Reichenbach 1853
Euryapteryx ponderosa Hamilton 1898 non Hutton 1891
Emeus boothi Rothschild 1907
Emeus haasti Rothschild 1907 non Palaeocasuarius haasti Rothschild 1907
Zelornis haasti (Rothschild 1907) Oliver 1949
Euryapteryx haasti (Rothschild 1907)
Emeus parkeri Rothschild 1907
Euryapteryx kuranui Oliver 1930
Euryapteryx geranoides Checklist Committee 1990 non Palapteryx geranoides
The broad-billed, stout-legged moa or coastal moa (Euryapteryx curtus) is an extinct species of moa. These moa lived in both the North and the South Islands of New Zealand, and on Stewart Island. Its habitat was in the lowlands (dunelands, forests, shrublands, and grasslands). It was a ratite and a member of the StruthioniformesOrder. The Struthioniformes are flightless birds with a sternum without a keel. They also have a distinctive palate. The origin of these birds is becoming clearer as it is now believed that early ancestors of these birds were able to fly and flew to the southern areas that they have been found in.
A 2009 genetic study showed that Euryapteryx curtus and Euryapteryx gravis were synonyms. A 2010 study explained size differences among them as sexual dimorphism. A 2012 morphological study interpreted them as subspecies instead.
The cladogram below follows a 2009 analysis by Bunce et al.:
Davies, S. J. J. F. (2003). "Moas". In Hutchins, Michael. Grzimek's Animal Life Encyclopedia. 8: Birds I: Tinamous and Ratites to Hoatzins (2nd ed.). Farmington Hills, MI: Gale Group. ISBN0-7876-5784-0.
Gill, B. J. (2010). "Regional comparisons of the thickness of moa eggshell fragments (Aves: Dinornithiformes)". Records of the Australian Museum. 62: 115–122. doi:10.3853/j.0067-1975.62.2010.1535.
Owen, R. (1846). A History of British Fossil Mammals and Birds. London, UK: John Van Voorst.
Worthy, T. H.; Scofield, R. P. (2012). "Twenty-first century advances in knowledge of the biology of moa (Aves: Dinornithiformes): a new morphological analysis and moa diagnoses revised". New Zealand Journal of Zoology. 39 (2): 87–153. doi:10.1080/03014223.2012.665060.