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RE: Russian Dinosaurs in T.O.: Longisquama
At 15.04 18/03/02 -0600, you wrote:
Silvio Renesto wrote:
> IMHO display either for mating or for threatening of potential
> predators is probably the best interpretation for the elongate
> appendages of Longisquama.
Methinks the feather-like appendages might have been used to tickle the
noses of potential predators. As the watery-eyed predator hauled back for a
sneeze, the _Longisquama_ made its getaway.
Tickling to make the predator sneezing has been already suggested for
Shortisquama last April 1st by H. Potter ;-) ;-) ;-)
Maybe I had not explained myself correctly. I meant "scaring" or
"puzzling" the attacker, something like the Natrix natrix defensive
behaviour, which turns suddenly belly up and looks like dead, or
Phrynosoma which throws blood drops against the potential attacker. More
similarly the spiny "beard" of Amphibolurus or the frill
of Chlamydosaurus, in these cases it is a device that probably was well
suited both for mating purposes and for scaring off (not too
big) predators. If they were brightly coloured, a sudden opening in a fan
like fashion would have "confused" a potential attacker modifying the
outline of the body. It is rather a common strategy. IF Longisquama was
arboreal (as suggested, for instance, by its forelimb and pectoral
girdle) it was relatively safe from bigger predators (perhaps?) and thus
this behaviour might have been at least feasible.
I agree with you completely about the lack of substantiated evidence in
Haubold and Buffetaut paper. You described perfectly the flaws of the paper.
"The Wise Man is like a bamboo tree;
simple, upright, and useful, but hollow inside"
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