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Re: Some data (was Re: Herbivore protection)
At 08:32 AM 5/28/97 -0400, Thomas R. Holtz, Jr. wrote:
>... Here are some the
>results (taken from Farlow, J.O. 1993. ...
>1:10-1:13 Judith River Group, based on articulated specimens.
>1:5-1:6 Judith River Group, based on surface collected isolated
Ack! This is *heavily* biased towards theropods.
Theropods are *known* to routinely lose teeth. Most herbivorous dinosaurs,
as far as I can tell, wore their teeth to nothing. As a result scraps
would contain a *large* excess of theropod teeth.
>1:23 Hell Creek Formation, based on surface collected isolated
Hmm, odd. Seems low for scrap.
>1:22-1:511 (mean 1:115) Judith River Group, based on screen washed
Overall, it looks like a ratio of between 1:10 and 1:25 seems likely.
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