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strata_09 (brief summary)

screenman on 24. Mar, 2011 — Lang: English

strata_09 (brief summary)
  • Description

    The calculation for matching with the hours in a day is done by me and may include some errors. Geologic periods are taken from Wikipedia.

    This strip is a reply to strata_08 (brief summary)

    Transcript

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    the last one and a half hours....

    22:52

    The first accepted evidence for viruses exists. Viruses are still poorly understood and may have arisen before "life" itself, or may be a more recent phenomenon. Major extinctions in terrestrial vertebrates and large amphibians. Earliest examples of Ankylosaurian dinosaurs. First lepidopteran insects (Archaeolepis), hermit crabs, modern starfish, irregular echinoids, corbulid bivalves, and tubulipore bryozoans. Extensive development of sponge reefs. First blood-sucking insects (ceratopogonids), rudist bivalves, and cheilosome bryozoans. Archaeopteryx, a possible ancestor to the birds, appears in the fossil record, along with triconodontid and symmetrodont mammals.

    23:08

    The rise of the Angiosperms: These flowering plants boast structures that attract insects and other animals to spread pollen. This innovation causes a major burst of animal evolution through co-evolution. First freshwater pelomedusid turtles. First monotreme mammals.. Extinction of ichthyosaurs. Earliest snakes. Large diversification in angiosperms: magnoliids, rosids, hamamelidids, monocots, and ginger. Earliest examples of ticks. First ants and termites. Multituberculate mammals increase in diversity.

    23:33

    The Cretaceous–Tertiary extinction event eradicates about half of all animal species, including mosasaurs, pterosaurs, plesiosaurs, ammonites, belemnites, rudist and inoceramid bivalves, most planktic foraminifers, and all of the dinosaurs excluding their descendants the birds. Earliest true primates. Many modern mammal groups begin to appear: first glyptodonts, ground sloths, dogs, peccaries, and the first eagles and hawks. Diversity in toothed and baleen whales. First balanids and eucalypts, extinction of embrithopod and brontothere mammals, earliest pigs and cats.

    23:53

    First giraffes and giant anteaters, increase in bird diversity. Mammut appears in the fossil record, first bovids and kangaroos, diversity in Australian megafauna.

    23:58

    First hominin (Sahelanthropus). First tree sloths and hippopotami, diversification of grazing herbivores, large carnivorous mammals, burrowing rodents, kangaroos, birds, and small carnivores, vultures increase in size, decrease in the number of perissodactyl mammals. The Great American Interchange, where various land and freshwater faunas migrated between North and South America. First members of the genus Homo appear in the fossil record. Evolution of Neanderthals.

    23:59:56

    Anatomically modern humans appear in Africa. Around 50,000 years before present they start colonising the other continents, replacing the Neanderthals in Europe and other hominins in Asia.

    Tags:
    strata
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Comments

  • Zuber 9.6.2013
    Good work I like this presentation.
  • kennyreid 10.9.2011
    huh, i liked that read
  • cackle 28.3.2011
    Thats why wonderful to say>High School finished!;))
  • Drachir 25.3.2011
    At school each day feels like ages
  • 35sheep 24.3.2011
    Great!!! Really interesting too.
  • sound 24.3.2011
    Very interesting and amazing work! Congratulations!

Displaying 6 out of 6 comments.