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Tail Dragging( was cheek pouches)

Hi all,

At the Clayton, New Mexico trackway there is plain and clear evidence that at
some times dinosaurs did indeed drag their tails. While this behavior may not
have been common it happened from time to time. I have photographic proof. At
this same site there is a set of tracks that seem to indicate a shuffling
"dance" by an indecisive dino, and in close association there is therapod
traces. If one were to speculate, or let your imagination run wild, one might
"see" a harosaur trying to figure out which way to run to try to lose a
persuing T-rex. If that were the case then the tail might have been used for
extra support during an abupt stop and turn. This extra "foot" would come in
handy for a mainly bipedal creature, would it not? Since the trackway was a
swampy mudflat, when the tracks were laid down, there would be little chance
of damage to the hadrosaur's tail. Also, in the slippery conditions of the
mud a little extra traction a strong tail could provide seems like a logical
use of the tools evolved.

Roger A. Stephenson