Learn about the time period that took place 65 to 23 million years ago. 3 min read At the dawn of the Paleogene—the beginning of the Cenozoic era—dinosaurs, pterosaurs, and giant marine ...

Image courtesy of Max Pixel (CC0) When the Cretaceous Period and Mesozoic Era ended 66 million years ago, the Palaeogene Period and the Cenozoic Era began. In the Palaeogene, the continents drifted ...

The records used for the analysis belong to penguins of different species that inhabited the White Continent throughout the Paleogene, added to those of a current specimen in order to make ...