Re: Dilophosaurus Exhibit on th

[chartiem@ERE.UMontreal.CA (Chartier Michel)]

> 
> Very nice exhibit! Sorry I don't have the correct sound software to hear it
> as well.
> 
> One of the pictures said "Flexible hand with opposable thumb".
> 
> Huh? In school I believe I was taught that the only critters with opposable
> thumbs were primates and some other mammals like lemurs or such. I wonder
> what tools he could have made with these hands (brain permitting). Makes me
> think of the books talked about here a while ago about the dinasaurs that had
> evolved into civilizations.
> 
> -C
> 
Lemurs (lemuriforms) ARE primates. But indeed some other mammals have opposable
thumbs, such as the opossum (which is a marsupial). I never heard about
Dilophosaurus having an opposable thumb. To my knowledge, the only theropods
with opposable digits are troodontids and possibly ornithomimosaurs (other
small theropods maybe?). Any one care to comment on this? Tom? Tony? Stan?
Anybody?

Mike