[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Re: Archaeopteryx flight
At 09:54 AM 10/19/2005 -0700, Ian Paulsen wrote:
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
To me, all this suggests that its flight ability was far from that of a
Bainbridge Island, WA, USA
"Rallidae all the way!"