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Re: Tarbosaurus

Dinogeorge wrote:
" Rivers are rivers, sedimentation is sedimentation no matter the
continent or the geological period. Whatever biases were operating on one
continent were most likely operating on the other"

        I think that's a gross oversimplification. Fossilization and
preservation can be affected by localized conditions such as soil pH,
precipitation, the scavenger fauna present, water velocity and stream
gradient in that area, etc. If all sand bars were created equal, Dinosaur
National Monument wouldn't be so unique (and spectacular) :)