The Lesser Megalapteryx or Upland Moa (Megalapteryx didinus) was a species of ratite bird endemic to New Zealand. Ratites are flightless birds with a sternum without a keel. They also have a distinctive palate. It was the last moa species to become extinct, vanishing around 1500.
Fossils and remains
Several specimens with soft tissue and feather remains are known:
Canterbury Museum NZ 1725, Remains of one partial egg which have been found at the Rakaia River in 1971 are tentatively attributed to this species. The radiocarbon date of approximately AD 1300–1400 is in line with this. Unusually, the eggshell is dark olive green, but even if the egg is of M. didinus, the shell color may have......