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THE FLOWERING PLANTS  ~145 million years

The great angiosperm radiation, when a great diversity of angiosperms appears in the fossil record, occurred in the mid-Cretaceous (approximately 100 million years ago). However, a study in 2007 estimated that the division of the five most recent (the genus Ceratophyllum, the family Chloranthaceae, the eudicots, the magnoliids, and the monocots) of the eight main groups occurred around 140 million years ago. By the late Cretaceous, angiosperms appear to have become the predominant group of land plants, and many fossil plants recognizable as belonging to modern families (including beech, oak, maple, and magnolia) appeared. (click to see all the article on Wikipedia)

開花植物 ~145百萬年前

巨大的被子植物適應輻射,是被子植物的大量多樣性的產生,從化石紀錄來看,發生在白堊紀中期(1億年前)。但是,2007年的研究指出,在被子植物門的八個主要群體中最近五個(金魚藻屬,金粟蘭科,真雙子葉植物分支,木蘭分支,單子葉植物分支)產生於14千萬年前。到了白堊紀晚期,被子植物變成陸地上的主要植物群,許多被認為可以歸入現今的科內的化石植物(包含了櫸樹,橡樹,楓樹,以及木蘭)也在此時出現。

(維基連結:開花植物適應輻射)

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