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Deutsche Oligozän {n} [geol.] Synonyme

geol  

Englische Oligocene Synonyme

 

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The Oligocene is a geologic epoch of the Paleogene Period and extends from about 33.9 million to 23 million years before the present . As with other older geologic periods, the rock beds that define the epoch are well identified but the exact dates of the start and end of the epoch are slightly uncertain. The name Oligocene comes from the Greek ?????? and ?????? , and refers to the sparsity of extant forms of molluscs. The Oligocene is preceded by the Eocene Epoch and is followed by the Miocene Epoch. The Oligocene is the third and final epoch of the Paleogene Period.