The newly described species each roamed Australia around 25-23 million years ago during the Oligocene epoch and represent the oldest "undoubted" members of the thylacinid family ever found, according ...
located in the Eocene-Oligocene porphyry-epithermal belt in Northern Chile (Figure 1, Tables 1 and 2). Dave Prins, President & CEO of CopperEx stated, "The results of the trenching campaign at ...
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Detailed magnetostratigraphic and biostratigraphic studies of Eocene-Oligocene deposits in southwestern Montana have greatly refined the dating of the fossil mammal assemblages known from the region.