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Re: Dino Demise by Angiosperms
> The fern spike is a western North American phenomenon. It seems to
> the sudden disappearence of FORESTS (both gymnosperms and angiosperms),
> subsequent pioneering of the by fern "weeds". The phenomenon represents
> 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?