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Re: The New Papers Destination

On Tue, Aug 18, 2009 at 05:01:29PM -0600, Jerry D. Harris scripsit:
> Zinoviev, A.V. 2009. An attempt to reconstruct the lifestyle of
> confuciusornithids (Aves, Confuciusornithiformes). Paleontological Journal
> 43(4):444-452. doi: 10.1134/S0031030109040145.
> ABSTRACT: The lifestyle of some representatives of the family
> Confuciusornithidae is reconstructed based on the analysis of osteological
> data, horn structures, and taphonomy. Confuciusornithids, which resemble
> extant Phaethon in general appearance, fed on fish, catching them from the
> surface layer of freshwater lakes. They rested and probably nested in trees
> growing near the basin. When moving in the tree canopy, they used the second
> digit of the wing, free from an alula and equipped with a well-developed
> claw. Unable to take off from the ground, they used the fourth digit of the
> forearm, which was free from feathers, for climbing tree trunks. A pair of
> elongated caudal feathers (rectrices) were probably used to attract mates.

Fourth digit?

Could that be a typo for "second"?

Also very curious as to how you would conclude they were unable to take
off from the ground.

-- Graydon