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Mountain dinosaurs (redux)
There are, in a very rough sense, fossilized "mountain habitats".
Sediments deposited in grabens as a result of Basin and Range-style block
faulting can be very deep and can be preserved, geologically, as long as
any other basin sediment, lasting long after the adjacent mountains have
The problem is that, at least in the U. S., Cretaceous age graben
sediments in orogenic regions are pretty rare, and what few examples
there are are areally and volumetrically small. Basin and Range-style
faulting didn't begin on a large scale in North America until the
I'd be interested in learning about Cretaceous graben deposits in paleo
mountain ranges elsewhere in the world. In particular, I'd like to know
what fauna these units contain.
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