A CATALOGUE OF MOA EGGS (AVES: DINORNITHIFORMES)
A CATALOGUE OF MOA EGGS (AVES: DINORNITHIFORMES)
复制标题
恐鸟蛋目录(鸟纲:恐鸟目)
DOI:
--
复制
发表时间:
2006
期刊:
影响因子:
--
通讯作者:
B. Gill
中科院分区:
文献类型:
--
作者:
B. Gill
There are 36 moa eggs whole enough, or suffi ciently reconstructed, to permit accurate measurement of size (length or width). They are held at eight museums in New Zealand, two in the United Kingdom and one in the United States. Twelve eggs are from the North Island and 24 from the South Island. Eggs have been found at 16 main sites, seven in the North Island and nine in the South Island, the latter nearly all east of the main divide. Most eggs (23 of 36) are from natural sites, all known or assumed to be Late Holocene in age, i.e. not more than about 10,000 years old. There are 13 eggs from archaeological sites, all in the South Island, and all known or assumed to be sites of early human settlement, c. 550-750 years old. In shape, the eggs are about equally split between long oval and elliptical. Only eight eggs are "whole" (at least 90% of the shell present). Thirteen eggs have large areas of intact shell, the remaining 23 being entirely broken into fragments, and either held together naturally by sediment (two eggs) or reconstructed (21 eggs). Moa eggs are 120-240 mm long, by 91-178 mm wide. Only two eggs have reliable identities from unambiguous association with an identifi ed skeleton. For the other eggs, identifi cation to species is mostly speculative and is reviewed here. The largest egg (240 x 178 mm) has been assigned to Dinornis robustus, the tallest moa, and the three smallest eggs (120-125 mm long) to the smallest moa, Euryapteryx curtus. Remaining eggs are mostly attributed to Eu. gravis, with a smaller group belonging probably to Anomalopteryx didiformis, and a few to other species, including green eggs laid by Megalapteryx didinus.