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Re: Thou Shalt Not Climb!
Jaime Headden wrote:
I think a good deal of dinosaurs were capable of climbing, at least in
kg range or so and less, but some seem better suited for sticking in there
while, including having a flexible knee. The pubis being reversed allows
leg to curl tighter and the animal to crouch down lower, as it reduces the
depth of the trunk.
In order to get from the propubic to the opisthopubic condition, the pubic
shaft had to swing through the "no-man's-land" of mesopuby. Many bird-like
maniraptorans and some basal birds have a mesopubic pelvis, such as
_Archaeopteryx_, unenlagiines (including _Rahonavis_), scansoriopterygids,
and jeholornithids. A mesopubic pelvis would seem to be the worst possible
configuration for a climber, given that the pubic shaft is directed
vertically (or subvertically).
Who's that on the Red Carpet? Play & win glamorous prizes.