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Re: JVP 25(3)



"Jaime A. Headden" wrote:

> The argument I
> forward is that the skull may exhibit some ability to plastically deform in 
> the
> anterior 1/3 of the skull, especially at the pterygoid/palatal and
> nasal/frontal contact zones. A wide gape, weakly to unossified but preserved
> gill arches, and a broad jaw with anteriorized thaumatic structures (weak
> maxilla with palatal teeth the most prominent dentition, suggest to me that a
> cranially kinetic mechanism may have been at play.

I kept axolotls for many years, and they certainly had a degree of
cranial kenesis. It seemed to help suck prey into their mouths as they
opened their jaws. Their heads also flexed while manouvering large items
into a swallowing position.

-- 
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Dann Pigdon
GIS / Archaeologist         http://heretichides.soffiles.com
Melbourne, Australia        http://www.geocities.com/dannsdinosaurs
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