Yale Scientists Discover the Last Living Dinosaur

Discussion in 'Environment' started by Matthew, Jul 16, 2011.

  1. Matthew
    Online

    Matthew Blue dog all the way!

    Joined:
    Mar 16, 2010
    Messages:
    49,642
    Thanks Received:
    4,589
    Trophy Points:
    1,885
    Location:
    Portland Oregon
    Ratings:
    +15,120
    Yale Scientists Discover the Last Living Dinosaur
    CTV ^ | Sat Jul. 16 2011


    A fossil discovered in Montana has given new momentum to the hypothesis that dinosaurs were thriving right up until a devastating meteor hit Earth 65 million years ago, causing their extinction.

    Scientists from Yale University have found what is believed to be the youngest dinosaur fossil ever found, thought to be from just before the mass extinction took place.

    The discovery, described in a study published in the online edition of the journal Biology Letters, contradicts the theory that the dinosaurs slowly went extinct before the cosmic impact.

    The fossil -- a 45-centimetre horn believed to be from a triceratops -- was found in Montana's Hell Creek formation. It was located just below the K-T boundary, the band of the Earth's crust that represents the time period in which the meteor struck.

    One of the main problems with the meteor theory has been the lack of any non-avian dinosaur fossils buried within 10 feet of the boundary -- known as the 'three metre gap.'

    The absence of fossils, some paleontologists say, indicates dinosaurs were already extinct when the cosmic impact occurred.

    Yale paleontologist Tyler Lyson, lead author of the study, says the new discovery proves otherwise.

    "To all of our surprise the boundary was no more than 13 centimetres above this horn, and the significance is this indicates that at least some dinosaurs were doing quite well in this locale at the time of the meteor impact," he told CTV.ca.

    There is evidence that avian dinosaurs thrived up to and into the K-T boundary. In fact, they are believed to have survived the meteor and evolved into modern-day birds.
    CTV Ottawa- Yale scientists discover the last living dinosaur - CTV News
    (Excerpt) Read more at ottawa.ctv.ca ...
     
  2. westwall
    Offline

    westwall USMB Mod Staff Member Gold Supporting Member Supporting Member

    Joined:
    Apr 21, 2010
    Messages:
    40,948
    Thanks Received:
    7,964
    Trophy Points:
    1,830
    Location:
    Nevada
    Ratings:
    +19,684



    They need to head south of the equator. The tuatara is a living dinosaur. They've been around for around 100 million years and survived the catastrophe that started the decline of the rest of the saurians.

    "New Zealand was separated from the rest of the world over 100 million years ago. The Tuatara "lizard" has survived all that time. It is not really a lizard.

    The Kiwi, a flightless bird, is a symbol of New Zealand. However, Tuatara is an even more primitive and distinctive animal than Kiwi.

    Tuatara heaven.
    Tuataras survived because no predators invaded New Zealand. Terrestrial mammals failed to cross the Tasman Ocean, which separated New Zealand from Australia by opening about 90 million years ago. (See tectonics section). Tuataras are unusual reptiles, since they like cool weather. They do not survive well over 25 degrees centigrade but can live below 5 degrees, by hibernating in burrows. New Zealand climate was just right."





    Tuatara Reptile, New Zealand
     
  3. whitehall
    Offline

    whitehall Gold Member

    Joined:
    Dec 28, 2010
    Messages:
    27,745
    Thanks Received:
    4,327
    Trophy Points:
    290
    Location:
    Western Va.
    Ratings:
    +10,689
    The scientific community can't rely on carbon dating because they are dealing with mineral representations of fossil bones rather than real bones. So, they rely on a theory that the strata where the "bones" were found could not have existed in the geographical area they are dealing with in a specified time span a couple of million years ago. Pretty thin evidence to base a claim of "the last living dinosaur". Times are tough even in the scientific community and they need a big "find" to keep those grants flowing.
     
  4. hjmick
    Online

    hjmick Gold Member

    Joined:
    Mar 28, 2007
    Messages:
    16,158
    Thanks Received:
    4,676
    Trophy Points:
    270
    Location:
    Charleston, SC
    Ratings:
    +7,102
    Larry King retired to Montana?
     
  5. California Girl
    Offline

    California Girl BANNED

    Joined:
    Oct 8, 2009
    Messages:
    50,337
    Thanks Received:
    8,960
    Trophy Points:
    0
    Ratings:
    +8,965
    Darn, I thought they were talking about Ralph Hall. :lol:
     

Share This Page