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Paleogene animals of North America (10 C, 7 P) Paleogene animals of Oceania (7 C) Paleogene animals of South America (7 C, 2 P) E. Eocene animals (8 C, 7 P) I.
The Paleogene Period (IPA: / ˈ p eɪ l i. ə dʒ iː n,-l i. oʊ-, ˈ p æ l i-/ PAY-lee-ə-jeen, -lee-oh-, PAL-ee-; also spelled Palaeogene or Palæogene) is a geologic period and system that spans 43 million years from the end of the Cretaceous Period 66 Ma (million years ago) to the beginning of the Neogene Period 23.04 Ma.
It is the first epoch of the Paleogene Period in the modern Cenozoic Era. The name is a combination of the Ancient Greek παλαιός palaiós meaning "old" and the Eocene Epoch (which succeeds the Paleocene), translating to "the old part of the Eocene". The epoch is bracketed by two major events in Earth's history.
Animals of the Paleocene Epoch – during the Early/Lower Paleogene Period Subcategories. This category has the following 9 subcategories, out of 9 total. ...
Mammals of the Paleocene Epoch during the Paleogene Period. Subcategories. This category has the following 9 subcategories, out of 9 total. Paleocene ...
Subdivision of the Paleogene according to the ICS, as of 2023. [2] Vertical axis scale: ... the age of deposits from which this insect is known. [6] History and naming
Since Juramaia, the earliest known eutherian, lived 160 million years ago in the Jurassic, this divergence must have occurred in the same period. After the Cretaceous–Paleogene extinction event wiped out the non-avian dinosaurs (birds being the only surviving dinosaurs) and several mammalian groups, placental and marsupial mammals diversified ...
The Cretaceous–Paleogene (K–Pg) extinction event, [a] also known as the K–T extinction, [b] was the mass extinction of three-quarters of the plant and animal species on Earth [2] [3] approximately 66 million years ago. The event caused the extinction of all non-avian dinosaurs.