出典:Wikipedia
出典:『Wikipedia』 (2009/09/10 22:48 UTC 版)
Neanis is an extinct genus of bird probably related to woodpeckers and toucans. It contains at least one species, N. schucherti; N. kistneri resembles this, but it probably belongs to a distinct genus and may not be closely related. Both are known from the Late Wasatchian (51-52 MYA) stratum of the Early Eocene Green River Formation of the Western-Central USA. "N." kistneri is known from one fairly complete, but not very well preserved skeleton, whereas of N. schucherti even less material was found.