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New refs....



Dear Listmembers I think that this new paper could interested someone,
expecially the Theropod/Bird fun.
Zhang F. and Zhou Z. 2004 Leg feathers in an Early Cretaceous bird. Nature
n°431.
Follow the abstract:
Here the authors describe a fossil of an enantiornithine bird from the Early
Cretaceous period in China that has substantial plumage feathers attached to
its upper leg (tibiotarsus). The discovery could be important in view of the
relative length and aerodynamic features of these leg feathers compared with
those of the small 'four-winged' gliding dinosaur Microraptor and of the
earliest known bird, Archaeopteryx. They may be remnants of earlier long,
aerodynamic leg feathers, in keeping with the hypothesis that birds went
through a four-winged stage during the evolution of flight.

By
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Alessandro Marisa
Via A. grandi n.18
38068 ROVERETO (TN)
email: amaris@tin.it
or: iguanodontia@yahoo.it
ITALY
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