At 09:54 AM 10/19/2005 -0700, Ian Paulsen wrote:HI: I've been reading differing view about how well Archaeopteryx could fly. Some sources say it was just a glider, others say it could fly like a modern day bird. What is the current thinking about its flight patterns?
A) Archaeopteryx lacked a triosseal canal, which indicates that the tendon from the supracoracoideus muscle (which assists in the wing's upstroke in modern flying birds) wasn't in its current position.
B) Archaeopteryx lacked a V-shaped ulnare, which helps to prevent the wing from buckling on the downstroke.
C) Archaeopteryx seems to have lacked a ossified sternum for the attachment of flight muscles.
D) It lacked an alula, which assists in low-speed flight and maneuverability control.
To me, all this suggests that its flight ability was far from that of a modern bird.
Ian Paulsen Bainbridge Island, WA, USA A.K.A.: "Birdbooker" "Rallidae all the way!"