https://gcmd.earthdata.nasa.gov/kms/concept/b5657be8-24d2-4cf0-90c2-c01922c74079
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definition | In the geologic timescale the Ypresian is the oldest age or lowest stratigraphic stage of the Eocene. It spans the time between 56 and 47.8 Ma, is preceded by the Thanetian age (part of the Paleocene) and is followed by the Eocene Lutetian age. The Ypresian age begins during the throes of the Paleocene–Eocene Thermal Maximum (PETM). The Fur Formation in Denmark and the Messel shales in Germany are from this age. | |||||||||
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in scheme | chronounits original |