| http://www.w3.org/ns/prov#value | - Think of pterosaur legs as having aerial functions similar to the tail of a sub-sonic plane or glider - stabilization, slowing down, and steering.Pterosaurs had no need for a delta-wing or limb-merging sacrifice of maneuverability since supersonic speed is unthinkable for them, and I can not think of any sort of stress that would simply yank the legs off if they were free from the wings.
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