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Re: new boook on functional morphology
> > of it, Johnson and Ostrom make a very strong case (and I was very pro
> > erect
> > gait!) for a sprawling gait in ceratopsian forelimbs, and this means that I
> > am now very confused! What are these things actually doing? The authors
> > make
> > a few suggestions...
Hmm, I seem to have missed the original of this, so please pardon the
lack of attribution.
Recently discovered ceratopsian trackways have definatively countered
Johnson & Ostrom's reconstruction of a sprawling gait. The trackways
are consistant with either an erect gait or a bow-legged gait (if
the manus was held twisted outward), but NOT with a sprawling gait.
That aside, it is still true the main use of the horns was probably
contests *within* the species. Even well-armed herbivores prefer
to run away from predators rather than fight.
The peace of God be with you.