Paleogene Period (66.0 - 23.0 MYA/43 Million Years)
What was the world like?
The end of the Cretaceous period was marked with a mass extinction that was heavily debated, but leans towards a volcanic eruption. The climate during the Paleocene and Eocene Epochs was warm and humid, a greenhouse climate, much warmer than the temperatures we experience today. The transition into the Oligocene turned colder. Most creatures that lived during this period were some of the first mammals, and according to fossils found during the beginning of the Cenozoic, were small herbivores.
Paleocene
Eocene
Oligocene
56-33.9 MYA
33.9-23.0 MYA
66-56 MYA
Facts
The name refers to the dawn of modern fauna
Sudden drop in temperature
Sea levels fell
Modern plant species (cacti, palm trees) appeared
permanent ice cap formed
cetaceans and sirenians first appearance
Resources
What Major Event Occurred?
Kaya, Mustafa Y., et al. “Paleogene Evolution and Demise of the proto‐Paratethys Sea in Central Asia (Tarim and Tajik Basins): Role of Intensified Tectonic Activity at ca. 41 Ma.” Basin Research, vol. 31, no. 3, 2019, pp. 461–86, https://doi.org/10.1111/bre.12330. Schulte, Peter, et al. “Chicxulub Asteroid Impact and Mass Extinction at the Cretaceous-Paleogene Boundary.” Science (American Association for the Advancement of Science), vol. 327, no. 5970, 2010, pp. 1214–18, https://doi.org/10.1126/science.1177265.
Hyperthermal events were the highlight of this period. Intense Volcanism and Large-Scale Greenhouse Gas emissions shaped the climate during the beginning of this period into the permanent ice cap formation of the Oligocene epoch. There were many global-scale Biogeochemical and Climate based extremes that shaped the fauna and mammals of this time period.
Original idea:
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Transcript
Paleogene Period (66.0 - 23.0 MYA/43 Million Years)
What was the world like?
The end of the Cretaceous period was marked with a mass extinction that was heavily debated, but leans towards a volcanic eruption. The climate during the Paleocene and Eocene Epochs was warm and humid, a greenhouse climate, much warmer than the temperatures we experience today. The transition into the Oligocene turned colder. Most creatures that lived during this period were some of the first mammals, and according to fossils found during the beginning of the Cenozoic, were small herbivores.
Paleocene
Eocene
Oligocene
56-33.9 MYA
33.9-23.0 MYA
66-56 MYA
Facts
The name refers to the dawn of modern fauna
Sudden drop in temperature
Sea levels fell
Modern plant species (cacti, palm trees) appeared
permanent ice cap formed
cetaceans and sirenians first appearance
Resources
What Major Event Occurred?
Kaya, Mustafa Y., et al. “Paleogene Evolution and Demise of the proto‐Paratethys Sea in Central Asia (Tarim and Tajik Basins): Role of Intensified Tectonic Activity at ca. 41 Ma.” Basin Research, vol. 31, no. 3, 2019, pp. 461–86, https://doi.org/10.1111/bre.12330. Schulte, Peter, et al. “Chicxulub Asteroid Impact and Mass Extinction at the Cretaceous-Paleogene Boundary.” Science (American Association for the Advancement of Science), vol. 327, no. 5970, 2010, pp. 1214–18, https://doi.org/10.1126/science.1177265.
Hyperthermal events were the highlight of this period. Intense Volcanism and Large-Scale Greenhouse Gas emissions shaped the climate during the beginning of this period into the permanent ice cap formation of the Oligocene epoch. There were many global-scale Biogeochemical and Climate based extremes that shaped the fauna and mammals of this time period.
Original idea: