evolution of plants

non-flowering plants

the first flowering plants evolved around 140mya
50-80% of the main family stems of angiosperms evolved in the warmest period of the Cretaceous from 100-90mya
the diversification leading to the extant diversity of most of the non-monotypic families (56–91%) did not start until the Cenozoic (56-37mya), this occurred in the context of profound changes in terrestrial ecosystems, including a well-documented trend of global warming in the Palaeocene and Eocene¹⁾

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