Diary 1 The Oligocene Era Youtube The oligocene (ipa: ˈ ɒ l ɪ ɡ ə s iː n, ɡ oʊ ol ə gə seen, goh ) [4] is a geologic epoch of the paleogene period that extends from about 33.9 million to 23 million years before the present (33.9 ± 0.1 to 23.03 ± 0.05 ma). 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. Just some fun facts about the oligocene era.
The Oligocene Epoch 34 23 Million Years Ago Paleontology World Simocetus. sabre toothed cat. enaliarctos. oligocene epoch, third and last major worldwide division of the paleogene period (65.5 million to 23 million years ago), spanning the interval between 33.9 million to 23 million years ago. the oligocene epoch is subdivided into two ages and their corresponding rock stages: the rupelian and the chattian. The oligocene was the last major geologic subdivision of the paleogene period (65 23 million years ago), following the paleocene (85 56 million years ago) and eocene (56 34 million years ago) epochs; all of these periods and epochs were themselves part of the cenozoic era (65 million years ago to the present). climate and geography. The oligocene epoch was a golden age for whales, rich in transitional species like aetiocetus, janjucetus, and mammalodon (which possessed both teeth and plankton filtering baleen plates). prehistoric sharks continued to be the apex predators of the high seas; it was toward the end of the oligocene, 25 million years ago, that the gigantic. Oligocene epoch. the oligocene epoch, a significant period in earth’s geological history, spanned from approximately 33.9 million to 23 million years ago. this epoch, nestled between the eocene and miocene epochs, was a time of considerable change and evolution, both in terms of climate and life on earth [1].
Comments are closed.