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  2. Mesozoic - Wikipedia

    en.wikipedia.org/wiki/Mesozoic

    The Mesozoic Era [3] is the era of Earth's geological history, lasting from about , comprising the Triassic, Jurassic and Cretaceous Periods.It is characterized by the dominance of archosaurian reptiles such as the dinosaurs, and of gymnosperms such as cycads, ginkgoaceae and araucarian conifers; a hot greenhouse climate; and the tectonic break-up of Pangaea.

  3. Timeline of Cretaceous–Paleogene extinction event research

    en.wikipedia.org/wiki/Timeline_of_Cretaceous...

    Artist's depiction of the end-Cretaceous impact eventSince the 19th century, a significant amount of research has been conducted on the Cretaceous–Paleogene extinction event, the mass extinction that ended the dinosaur-dominated Mesozoic Era and set the stage for the Age of Mammals, or Cenozoic Era.

  4. Late Cretaceous - Wikipedia

    en.wikipedia.org/wiki/Late_Cretaceous

    The event marks the end of the Mesozoic Era and the beginning of the Cenozoic Era. [12] "Tertiary" being no longer recognized as a formal time or rock unit by the International Commission on Stratigraphy, the K-T event is now called the Cretaceous—Paleogene (or K-Pg) extinction event by many researchers.

  5. Cretaceous - Wikipedia

    en.wikipedia.org/wiki/Cretaceous

    At the end of the Cretaceous, the impact of a large body with the Earth may have been the punctuation mark at the end of a progressive decline in biodiversity during the Maastrichtian age. The result was the extinction of three-quarters of Earth's plant and animal species.

  6. Carnian pluvial episode - Wikipedia

    en.wikipedia.org/wiki/Carnian_Pluvial_Episode

    Sediments corresponding to the base of the episode show a prominent –2 to –4‰ δ 13 C excursion, indicating the release of a lightweight carbon isotope, carbon-12, into the atmosphere. [38] This excursion was first mentioned regarding carbonates in Israel, [ 6 ] and was later reported in more detail from fragments of carbonized wood in ...

  7. A Study Says the Mesozoic Era Is the Key to Finding the ... - AOL

    www.aol.com/lifestyle/study-says-mesozoic-era...

    Of all the phases Earth has been through, the Mesozoic Era stands out among the rest—even from off-world. Skip to main content. Sign in. Mail. 24/7 Help. For premium support please call: 800-290 ...

  8. Welcome to Middle-earth. Here's Your Guide to the LOTR ... - AOL

    www.aol.com/lifestyle/welcome-middle-earth-heres...

    Now, with J.R.R. Tolkien's birthday approaching on January 8, it's time for a whole new generation of fans to discover Middle-earth. If you haven’t read the series, how I envy you! Newcomers are ...

  9. Triassic–Jurassic extinction event - Wikipedia

    en.wikipedia.org/wiki/Triassic–Jurassic...

    Conodonts were a major vertebrate group which died out at the end of the Triassic. Fish did not suffer a mass extinction at the end of the Triassic. The Late Triassic in general did experience a gradual drop in actinopterygiian diversity after an evolutionary explosion in the Middle Triassic.