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  2. Timeline of Cretaceous–Paleogene extinction event research

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

    A study aiming to quantify the habitat of latest Cretaceous North American dinosaurs, based on data from fossil occurrences and climatic and environmental modelling, and evaluating its implications for inferring whether dinosaur diversity was in decline prior to the Cretaceous–Paleogene extinction event, was published by Chiarenza et al ...

  3. Hell Creek Formation - Wikipedia

    en.wikipedia.org/wiki/Hell_Creek_Formation

    The dinosaur collections made over the past decade during the Hell Creek Project yielded new information from an improved genus-level collecting schema and robust data set that revealed relative dinosaur abundances that were unexpected, and ontogenetic age classes previously considered rare.

  4. List of pathological conditions reported in Mesozoic dinosaurs

    en.wikipedia.org/wiki/List_of_pathological...

    This list of pathological conditions reported in Mesozoic dinosaurs enumerates the various types of injury, disease, deformity or parasite infection identified among Mesozoic dinosaur fossils. The list

  5. Portal:Dinosaurs - Wikipedia

    en.wikipedia.org/wiki/Portal:Dinosaurs

    Dinosaurs are a diverse group of reptiles of the clade Dinosauria.They first appeared during the Triassic period, between 243 and 233.23 million years ago (mya), although the exact origin and timing of the evolution of dinosaurs is a subject of active research.

  6. Study reveals when the first warm-blooded dinosaurs ... - AOL

    www.aol.com/did-dinosaur-blood-run-hot-150006870...

    Dinosaurs were initially cold-blooded, but global warming 180 million years ago may have triggered the evolution of warm-blooded species, a new study found.

  7. Paleovirology - Wikipedia

    en.wikipedia.org/wiki/Paleovirology

    Paleovirology is the study of viruses that existed in the past but are now extinct. In general, viruses cannot leave behind physical fossils, [1] therefore indirect evidence is used to reconstruct the past.

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Discover the best free online games at AOL.com - Play board, card, casino, puzzle and many more online games while chatting with others in real-time.