Re: PARTICULAR sauropods aquatic?

["Krzic" <krzic@slo-kabel.si>]

-----Original Message-----
From: Dinogeorge@aol.com <Dinogeorge@aol.com>
To: dinosaur@usc.edu <dinosaur@usc.edu>
Date: 2. september 1999 19:29
Subject: Re: PARTICULAR sauropods aquatic?


>
>There is at least one sauropod trackway (found by Bird? can't recall right
>now) that includes only forefoot impressions and could only be produced by
a
>sauropod walking in fairly deep water with its hindquarters floating off
the
>substrate.
>


Didn't M. Lockley explain this trackway as undertracks of sauropod manus
imprints, thus discarding the partly-swimming theory?

>Considering how pneumaticized sauropod skeletons were, it might indeed have
>been impossible for them to submerge completely, since their overall
density
>would have been significantly less than that of water.

Hard, but not impossible. See hippopotamus for example. Breathing with only
head out, while submerged would be impossible, though. Zallinger's
Apatosaurus example is quite probable for some species, I guess.


Sincerely,
Berislav Krzic: economist, editor, illustrator, webmaster, writer
dinosaurbero@geocities.com
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