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Re: Dino Demise by Angiosperms



> The fern spike is a western North American phenomenon.  It seems to
indicate
> the sudden disappearence of FORESTS (both gymnosperms and angiosperms),
and
> subsequent pioneering of the  by fern "weeds".  The phenomenon represents
a
> VERY brief event: most likely the larger scale obliteration of forests in
> western North America.

AFAIK a fern spike is known from New Zealand too, no?