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  2. Paleocene - Wikipedia

    en.wikipedia.org/wiki/Paleocene

    Multituberculates, a now-extinct rodent-like group not closely related to any modern mammal, were the most successful group of mammals in the Mesozoic, and they reached peak diversity in the early Paleocene. During this time, multituberculate taxa had a wide range of dental complexity, which correlates to a broader range in diet for the group ...

  3. Paleocene–Eocene Thermal Maximum - Wikipedia

    en.wikipedia.org/wiki/Paleocene–Eocene_Thermal...

    In any case, significant terrestrial ice sheets and sea-ice did not exist during the late Paleocene through early Eocene. [13] Earth surface temperatures gradually increased by about 6 °C from the late Paleocene through the early Eocene. [13] Superimposed on this long-term, gradual warming were at least three (and probably more) "hyperthermals".

  4. Geologic temperature record - Wikipedia

    en.wikipedia.org/wiki/Geologic_temperature_record

    Geologists and paleontologists think that during much of the Paleocene and early Eocene, the poles were free of ice caps, and palm trees and crocodiles lived above the Arctic Circle, while much of the continental United States had a sub-tropical environment.

  5. Geological history of Earth - Wikipedia

    en.wikipedia.org/wiki/Geological_history_of_Earth

    During the Permian all the Earth's major land masses, except portions of East Asia, were collected into a single supercontinent known as Pangaea. Pangaea straddled the equator and extended toward the poles, with a corresponding effect on ocean currents in the single great ocean ( Panthalassa , the universal sea ), and the Paleo-Tethys Ocean , a ...

  6. Late Cenozoic Ice Age - Wikipedia

    en.wikipedia.org/wiki/Late_Cenozoic_Ice_Age

    The shape of Earth's orbit around the Sun affects the Earth's climate. Over a 100,000 year cycle, Earth oscillates between having a circular orbit to having a more elliptical orbit. [ 24 ] From 2.58 million years ago to about 1.73 million ± 50,000 years ago, the degree of axial tilt was the main cause of glacial and interglacial periods.

  7. Hyperthermal event - Wikipedia

    en.wikipedia.org/wiki/Hyperthermal_event

    the Dan-C2 event at the beginning of the Danian stage of the Paleocene, about 65.2 million years ago, quite the basis of the Cenozoic era; the Danian-Selandian event at the transition between the Danian and Selandian stages of the Paleocene, about 61 million years ago; the two events following the PETM during the Eocene climatic optimum:

  8. This Rare Meteorite Contains Earth-Like Water and Could ... - AOL

    www.aol.com/lifestyle/rare-meteorite-contains...

    This Rare Meteorite Has Earth-Like Water Jonathan E.Jackson / NHM Photo Unit The Winchcombe meteorite is a rare find, with a similar hydrogen isotope ratio to the water on Earth.

  9. Paleoclimatology - Wikipedia

    en.wikipedia.org/wiki/Paleoclimatology

    The scientific field of paleoclimatology came to maturity in the 20th century. Notable periods studied by paleoclimatologists include the frequent glaciations that Earth has undergone, rapid cooling events like the Younger Dryas, and the rapid warming during the Paleocene–Eocene Thermal Maximum.