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RE: Ankylosaurid tails?

On Thu, 1 Jun 2006 Ken.Carpenter@dmns.org wrote:
Mostly side-to-side because the chevrons restrict up-down 

Leg breaker... which would be rough on a two legged predator.

Is there any estimate on how much force could be generated
with a swing? (would such an estimate be possible?)

[...]
-----Original Message-----
From: owner-DINOSAUR@usc.edu [mailto:owner-DINOSAUR@usc.edu] On Behalf
Of Jerzy.Dyczkowski@unibas.ch
Sent: Thursday, June 01, 2006 10:11 AM
To: Dinosaur Mailing List
Subject: Ankylosaurid tails?

Just a question - were ankylosaurids able to swing their tails to the
side and upwards, or only sideways. And how quick movement it would be?

It could be a clue to their function - sideways swinging can be used
both against predator and conspecifics, but swinging upwards is good
indication that tails were employed against predatory dinosaurus.