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Re: Theropod eating and attacking



On Mon, 1 Sep 1997 15:42:15 +0100 "Jarno Peschier" <jpeschie@cs.ruu.nl>
writes:
>On 30 Aug 97 at 21:37, jamolnar@juno.com wrote:
>
>> > Predators can, if their digestive systems are strong enough,
>> > get calcium from the hard bits of their prey; but where
>> > exactly do herbivores get their calcium?
>> 
>> Many herbivores chew on bones and antlers that they find of dead
>> animals out in the wild.  Any skulls, turtles shells, bones left out
>> in the wild have plenty of chew marks on them from this gnawing,
>> especially from rodents.
>
>Mmm, just a question: Would these "plenty of chew marks" show up on 
>fossils? Is there evidence of this gnawing by herbivores on 
>fossilised bones from the mesozoic? Or would he "dead animals out in 
>the wild" generally be the ones that end up in places where they do 
>not fossilize well (also meaning that the ones that end up in e.g. 
>riverbeds and that do fossilize well aren't gnawed on because these 
>dead animals end up in water)? In other words: would hebivorous 
>dinosaurs (and other mesozoic animals) also have gnawed on the bones 
>of dead animals they found and if they would, is there any evidence 
>of this?

Good question, but I have no information on this.  Anyone else out there?

Judy Molnar
Education Associate, Virginia Living Museum
vlmed@juno.com
jamolnar@juno.com
All questions are valid; all answers are tentative.