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At 10:48 AM 4/1/97 -0500, John Bois wrote:
>Then allow me to drive you nuts with one last question. I think you
>are saying that dry-tolerant ferns were the major fodder for open-
>country dinosaurs in the late cretaceous. Do you think they could
>support the biomass that modern savannah grasses can,
Almost certainly. Have you ever seen a bracken meadow? It is every bit as
dense and tall as a grass meadow.
> and do you think their range was
>as broad as the grasses?
Probably not quite. I suspect in really arid environments they tended to
be dormant most of the time. This may be why dune seas are so common in
By the way, I would add quillworts to the general ground cover. They, too,
can deal with surprisingly arid habitats for a form with flagellated sperm.
Even today there are some growing in harsh subalpine "grasslands" (not
just meadows - wet grasslands - either).
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