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05-Jul-2018 22:59

The end-Frasnian extinction (the largest) about 375 million years ago.

The about 365 million years ago during the Famennian.

The end-Frasnian extinction was most pronounced in tropical environments, particularly in the reefs of the shallow seas.

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Henry Shaler Williams (1891) proposed Pennine System as the name for the Carboniferous.

372,200,000 to 358,900 years ago Famennian age of the separated by about 10 million years.

About 375 million years ago, towards the end of a time interval called the Givetian.

By carboniferous [carbon bearing] soils, Richard Kirwan in 1799 meant the "various sorts of earth or stone among or under which coal is usually found".

William Daniel Conybeare and William Phillips (1822, page vii) proposed to consider all rocks in an ascending order with a group including "not only the great coal-deposit itself, but those of the limestone and sandstone also on which it reposes" as the "medial" [middle] order.

"More than 3.5 billion years ago, small single-celled organisms acquired the capacity to photosynthesize" "Plants were restricted to the aquatic world until three billion years later, the first uncontroversial evidence for life is found 2,700,000,000 years ago.