Slashdot Mirror


Grass Grazing In Dinosaurs Confirmed

longhawn writes "Reuters AlertNet reports that a team of researchers found evidence in India that dinosaurs ate grass. This discovery was made when scientists found pieces of grass in fossilized dinosaur dung (coprolites). Prior to this finding, scientists did not even know that grass existed at that time." From the article: "Few scientists had ever thought that dinosaurs grazed, because there was no evidence that grasses existed that long ago. They believed that the grinding teeth found in some dinosaur fossils were used for munching other plant matter, perhaps trees, like modern beavers chew on today."

2 of 177 comments (clear)

  1. Idiot by Commander+Trollco · · Score: 5, Informative

    This is big news because it sets back the timeline on angiosperms(flowering plants). Grasses are about as primitive a flowering plant as you get. Previously, the earliest forms in the fossil record are Plants similar to today's Magnoliaceae, from Cretaceous-era fossils. With Titanosaurs being Jurassic, I assume...
    Life as we know it today is imtimately bound up with the flowering plants, and of would be radically different in a Gymnosperm-only world.

    --
    http://persianews.on.nimp.org/?u=Tar_Baby
  2. Re:Slashdot Logic by volfro · · Score: 5, Informative
    From TFA:
    They sent some photographs and then samples to Stromberg, who spotted tiny silica structures called phytoliths.

    "It's indisputable that these are from grasses. The shape of these phytoliths indicate that they are from grasses," said Dolores Piperno...

    They didn't find whole blades. They found remnants from several different types of grasses. Which suggests to these paleontologists (not Slashdot) that 1: the dinosaurs ate grass; and 2: that the grass had been around for a long enough time to adapt and diversify.

    The scientists made the leap, not slashdot. RTFA.