Re: sauropod quantity

[Stanley Friesen <sarima@ix.netcom.com>]

At 03:51 AM 9/20/99 -0700, Jaime A. Headden wrote:
>misproportion of juvenile-to-adult ratio. These tracks
>may represent juveniles of some larger animals.

This is possible.
>
>  And how would they need be theropods? During the
>time frame suggested above (Nor-Toarc) there are
>perhaps a superabundance of non-theropods that walked
>three-toed and would have left slender-toed prints
>without impression of the hallux, including smaller
>"prosauropods" like *Thecodontosaurus*, and
>"hypsilophodontids," especially, and all basal
>ornithschians, generally.

Generally speaking, a track expert can distinguish theropods from
three-toed herbivorous dinosaurs.  The toes have a somewhat different
structure in theropods than in the other three-toed forms.  So this
possibility can be fairly well ruled out for many of these tracks

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May the peace of God be with you.         sarima@ix.netcom.com