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Ray Stanford <dinotracker@earthlink.net> wrote
   For those interested in the 'problem' of tail dragging in dinosaurs, the
current  (June 23) issue of SCIENCE NEWS, page 397, column 1,  tell us that
on a 50-acre parcel of land in St. George, Utah, owned by Sheldon Johnson,
there are "...More than 100 footprints of meat-eating theropod dinosaurs
which have been uncovered here, as well as grooves where the creatures'
tails dragged in the mud."

   The fossil tracks are said to range from 5 to 18 inches in length.  Note
that they were made in deep mud, and some went so deep that a hallux (digit
I) imprint is recorded.  Perhaps the mud depth might have resulted in tail
drag marks where, normally, the tail might have been suspended somewhat
above the surface.

Could it be that the animal (if it was a carnivore) was dragging its prey in between its legs - as large cats do quite often. That would produce a drag mark, specially on soft mud. Tigers often hunt in the marshy or muddy flood plains but then drag the prey on to the dry land before eating.

Gautam Majumdar                 gautam@majumdar.demon.co.uk