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He began to do this in 1866 in the General Morphology. about 419,2000,000 to 393,300,000 years ago Early Devonian The vegetation of the early Devonian consisted primarily of small plants, the tallest being only a meter tall.
Judging from the past we may safely infer that not one living species will transmit its unaltered likeness to distant futurity." (Charles Darwin) From primal swamp to speaking humans: Ernst Haeckel said (1903) that the Pithecoiden (monkey) theory of human evolution requires tracing our animal ancestors before monkeys.
They said "the epithet carboniferous is of obvious application to this series".
Henry Shaler Williams (1891) proposed Pennine System as the name for the Carboniferous.
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.
Reef building sponges called stromatoporoids and corals suffered losses and stromatoporoids finally disappeared in the third extinction near the end of the Devonian.Galena can contain minor amounts of antimony, arsenic, bismuth, cadmium, copper, silver, and zinc See and stalagmites.Encountering impermeable strata (such as toadstone) it forms underground lakes in the limestone which overflow to the surface as natural springs (a resurgence).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.4,540,000,000 (4.54 billion) years ago Formation of planet Earth - Usher's date was ).