Abstract
THE history of life on Earth seems to have been punctuated by fairly swift changes in ecosystems, brought about initially by tectonic or cataclysmic events. The flora, being at the base of the food chain, would have a secondary effect on faunal evolution when undergoing even slight modifications. Such an instance may be found at the end of the Mesozoic, when the oncoming angiosperms must have greatly modified faunal ecosystems on the land. But it would be incorrect to assume that these changes had no relevance to seafloor communities, especially with regard to the appearance of grasses.
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BRASIER, M. Grass Roots at the Base of the Neogene. Nature 243, 342 (1973). https://doi.org/10.1038/243342a0
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DOI: https://doi.org/10.1038/243342a0
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