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  2. Global Boundary Stratotype Section and Point - Wikipedia

    en.wikipedia.org/wiki/Global_Boundary_Stratotype...

    A Global Boundary Stratotype Section and Point (GSSP), sometimes referred to as a golden spike, is an internationally agreed upon reference point on a stratigraphic section which defines the lower boundary of a stage on the geologic time scale.

  3. Dinosaur classification - Wikipedia

    en.wikipedia.org/wiki/Dinosaur_classification

    As computer-based cladistics matured in the 1990s, paleontologists were among the first zoologists to broadly adopt the system. [3] Progressive scrutiny and work upon dinosaurian interrelationships, with the aid of new discoveries that have shed light on previously uncertain relationships between taxa, have begun to yield a stabilizing ...

  4. Geologic time scale - Wikipedia

    en.wikipedia.org/wiki/Geologic_time_scale

    The geologic time scale, proportionally represented as a log-spiral with some major events in Earth's history. A megaannus (Ma) represents one million (10 6) years.. The geologic time scale or geological time scale (GTS) is a representation of time based on the rock record of Earth.

  5. Paleontology - Wikipedia

    en.wikipedia.org/wiki/Paleontology

    Paleontology (/ ˌ p eɪ l i ɒ n ˈ t ɒ l ə dʒ i, ˌ p æ l i-,-ən-/ PAY-lee-on-TOL-ə-jee, PAL-ee-, -⁠ən-), also spelled palaeontology [a] or palæontology, is the scientific study of life that existed prior to the start of the Holocene epoch (roughly 11,700 years before present).

  6. Some tax refunds can come with hidden fees, government report ...

    www.aol.com/tax-refunds-come-hidden-fees...

    Americans paid an estimated $842 million in fees to cover advance loan refunds or refund anticipation checks last year.

  7. Evolutionary grade - Wikipedia

    en.wikipedia.org/wiki/Evolutionary_grade

    The green box (central) may represent an evolutionary grade (paraphyletic), a group united by conservative anatomical and physiological traits rather than phylogeny. The flanking red and blue boxes are clades (i.e., complete monophyletic subtrees). A grade is a taxon united by a level of morphological or physiological complexity.

  8. Blast from the past: Researchers discover oldest US gun ...

    www.aol.com/blast-past-researchers-discover...

    Researchers in Arizona say they have discovered the oldest gun in the U.S., a cannon used during the first European expedition across the Southwest.

  9. 12 ways to make your home look like a Hallmark Christmas ...

    www.aol.com/lifestyle/12-ways-to-make-your-home...

    Of course, if subtlety isn't your specialty, then go all out with this impressive 9-foot pre-lit Christmas tree that's flocked with snowflakes to give it an extra cozy and wintery look.