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More Antarctic Dinosaurs

RockDoctor writes "The highly respected palaeontology journal Acta Palaeontologica Polonica has published its December number for free access on the Web, with the headline paper concerning new discoveries of dinosaurs from Antarctica. (Paper here, PDF.) The first major part of these discoveries was made in 1991, when isolated bones of a sauropod (a relative of the Apatosaurus, formerly known as Brontosaurus) were found associated with a theropod (ancestor or cousin of Tyrannosaurus rex). The sauropod has been named Glacialisaurus hammeri (the reason for the genus name is obvious, and Professor Hammer led the field expeditions under 'extremely difficult conditions'). The herbivore was some 25 ft. long and weighed 4 to 6 tons; at the time of life, the area was between 55 and 65 degrees south, suggesting a climate similar to the Falkland Islands or Tierra del Fuego."

30 of 167 comments (clear)

  1. Antarctica? by oahazmatt · · Score: 4, Funny

    So that's where Jesus hid them all!

    I'm ready to be modded down, now.

    --
    Those who believe the Internet is private,
    find their privates are on the Internet.
    1. Re:Antarctica? by eviloverlordx · · Score: 2, Insightful

      So that's where Jesus hid them all!

      I think you meant the Old Ones.

      --
      'Loose' is when your pants are three sizes too big. 'Lose' is when you misuse 'loose'.
  2. brontosaurus by icebones · · Score: 4, Informative

    Why did they change the name of the brontosaurus? I liked that name better.

    --
    Life is pain. Anyone who says differently is selling something.
    1. Re:brontosaurus by eviloverlordx · · Score: 3, Informative

      Because Apatosaurus was described first. According to the International Code of Zoological Nomenclature (ICZN), the first name has priority. There are occasional exceptions to the rules (Boa constrictor comes to mind), but for the vast majority of cases, the ICZN is 'The Rule Book'.

      --
      'Loose' is when your pants are three sizes too big. 'Lose' is when you misuse 'loose'.
    2. Re:brontosaurus by moderatorrater · · Score: 4, Interesting

      According to wikipedia, the apatosaurus had been known well before the brontosaurus ever came around. When the paleontologist who discovered the brontosaurus assembled it, he concluded that it was different from the apatosaurus and named it accordingly. Upon further study, they discovered that they were the same type of dinosaur, and since the apatosaurus was already established when the brontosaurus came around, they decided to use that name and just make "brontosaurus" a synonym.

    3. Re:brontosaurus by xENoLocO · · Score: 4, Funny

      If no one else is using it, can I?

      Bow before me. I am Brontosaurus. Frickin' sweet!

      --
      "The need to build the internet comes from something inside us, something programmed... something we can't resist."
    4. Re:brontosaurus by nephridium · · Score: 2, Informative

      Basically Brontosaurus was an Apatosaurus with a Camarasaurus skull wrongly assigned to it. Camarasaurus has a relatively short neck with a round skull; Apatosaurus has a long neck with a flat skull. So whenever you see a picture of a sauropod with a really long neck and round skull it's probably an old reconstruction of a Brontosaurus which never existed. It was a cool name though, it means "thunder lizard".

      Btw what's with all these obsessing about sources (at least with topics such as these); I don't have any sources handy right now either, but I'm pretty sure I'd be able to find adequate sources for this within minutes in a public library. Or even google.

      --


      And when you gaze long enough into the code, the code will also gaze into you.
    5. Re:brontosaurus by RockDoctor · · Score: 2, Informative

      There are occasional exceptions to the rules (Boa constrictor comes to mind), but for the vast majority of cases, the ICZN is 'The Rule Book'.

      FYI, there is another "grand renaming" in the pipeline, due to the description and naming of a partial leg in about 1880. Tyrannosaurus appears to have been described (partially) from a handful of bones over 20 years before Barnum Brown found, described and named the iconic near-complete skeleton.

      ICZN does have rules to cover this situation now - if the taxon with the invalid name (in this case, Tyrannosaurus) haas been used in more than 50 publications over a period of more than 25 years prior to the recognition of synonymy, then the original name may be suppressed and the seemingly invalid junior synonym remain as the recognised synonym. In short, if it'll cause too much disruption to the literature then there's no need to accept the change. So it seems that the name Tyrannosaurus is safe, unless something else turns up out of the nomenclatural woodwork.

      --
      Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"
  3. Formerly Brontosaurus?? by Anonymous Coward · · Score: 2, Funny

    When & why did we stop calling a brontosaurus a brontosaurus?

    Next thing you'll tell me we only have 8 planets!

    1. Re:Formerly Brontosaurus?? by eln · · Score: 4, Funny

      The Brontosaurus had a dispute with his record company, and the name change was his "first step toward the ultimate goal of emancipation from the chains that bound" him to that record label, since the label owned all the trademarks to the name. After first changing his name to an unpronounceable symbol, he later changed it to "the Artist Formerly Known as Brontosaurus" before finally settling on "Apatosaurus".

      Honestly, didn't they teach you anything in school?

    2. Re:Formerly Brontosaurus?? by LiquidCoooled · · Score: 2, Funny

      It was changed by a group of jobsworths who decided sometime after we left school that all these things needed changing.
      Incidentally one of their former classmates invented the gibibyte.

      --
      liqbase :: faster than paper
    3. Re:Formerly Brontosaurus?? by LiquidCoooled · · Score: 2, Interesting

      Hang on there, don't post half a sentence..

      The species Brontosaurus excelsus was named by its discoverer Othniel Charles Marsh, in 1879 and the designation persisted as an official term in the general public's literature until at least 1974, though it was recognized as a species of a previously-named genus, Apatosaurus, in 1903..

      which backs up what I just said (though I was born in 1975 so in England we must have been slow to change books).

      We shall both be right :)

      --
      liqbase :: faster than paper
    4. Re:Formerly Brontosaurus?? by geekoid · · Score: 2, Insightful

      and don't bold the wrong part.

      "The species Brontosaurus excelsus was named by its discoverer Othniel Charles Marsh, in 1879 and the designation persisted as an official term in the general public's literature until at least 1974, though it was recognized as a species of a previously-named genus, Apatosaurus, in 1903.."

      So yes, we both learned the wrong name from poor school literature.

      however, I had a brief flirtation with paleontology so I had learned the proper name in high school and I should have recognized that I was pretty unique in that matter.
      For the record: paleontology was an interest for the same reason everything else was an interest in high school. There was a hot chick in the class.

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
  4. Image by sc0ob5 · · Score: 5, Interesting

    There is an image of the thing on this blog if you are interested. http://thedragonstales.blogspot.com/2007/12/hail-glacialisaurus-hammeri.html

  5. Re:Pop goes the theory by jythie · · Score: 2, Interesting

    ahm, how so? The Antarctic used to be in a warmer region so it should have all sorts of remnants on it.

  6. Headline: Antarctica by Penguinisto · · Score: 4, Funny
    Scott Polar Station (DevNull): Today, Researchers have discovered the remains of what appears to be a long-sought-after ancient creature. Labelled Minix Tannenbaumis, or just "Minix" this creature is thought to be the direct descendant of the modern-day Penguin (Linux Sapiens Sapiens).

    Researchers have still to uncover this creature's habitat, but they did find the petrified parts of a corpse belonging to a rather large creature, which is referred to more commonly by its Latin name, Nix Quintis, as well as remains of another animal known as Distriae Berkeleyus; the latter was known to have been wiped out approximately sixteen million years ago due to the Netcraft epidemics, which gives us a rough idea as to how old Minix is.

    A lean predator, Minix was known to be a vicious and somewhat egotistical creature, prone to fits of foaming anger and long diatribes, with which it used as a means to kill its prey.

    While we do not yet know the full extent of Minix, it is well studied by previously found fragments, and today's discovery should present a far clearer picture in the years to come as it reveals its secrets.

    Meanwhile, paradoxically, no trace has yet to be found of the species known as Bloatasaurus, or Vista Microsoftae. A large, slow-moving creature, this dinosaur was well known to have been a common victim of predatory attacks, and yet very few have been found. Archaeologist Steve Ballmer is heading the team searching for Bloatasaurus, though his peers still doubt his claims that "They're everywhere! It was the most popular friggin' beast alive!" Whether this creature actually existed still remains in doubt among some.

    /P

    --
    Quo usque tandem abutere, Nimbus, patientia nostra?
  7. Re:Pop goes the theory by moderatorrater · · Score: 2, Insightful

    Actually, the dinosaurs lived there before the continents moved to their current locations. It was quite a bit closer to the equator at that time, so whether or not the antarctic heating up is a good thing or a bad thing is still up in the air. Also, you seem to have switched your attacks from "global warming != bad" to "humans aren't causing it", which is somewhat confusing and makes your post harder to understand.

  8. Re:Pop goes the theory by MalleusEBHC · · Score: 4, Insightful

    From the article...

    "This was probably due to the fact that major connections between the continents still existed at that time, and because climates were more equitable across latitudes than they are today," Smith said.

    Can we just go one discussion without bringing up global warming? While it's midly related, this is more about Pangaea and where Antarctica was 190 million years ago.

  9. Brontosaurus, thank you by Trogre · · Score: 4, Funny

    I prefer the traditional name for that Dino, thanks.

    The name Brontosaurus strikes an image of a colossal behemoth that would crush you to paste if you got in its way.

    Apatosaurus sounds like it should be serving you tea cakes.

    --
    "Nine times out of ten, starting a fire is not the best way to solve the problem." - my wife
    1. Re:Brontosaurus, thank you by z-man · · Score: 2, Informative

      Apatosaurus sounds like it should be serving you tea cakes. To me, apatosaurus sounds like the dino version of an apathetic unemployed couch potato.
  10. Re:Ice by gardyloo · · Score: 2, Funny

    Yeah, but then someone hired by Tonya Harding comes along and whacks it in the knees. It's not a pretty picture.

  11. And they rocked out to... by greymond · · Score: 3, Funny

    Hammeri Time

    My, my, my, my dino hits me so hard
    Makes me say oh my word
    Thank you for proving me
    With a mind to dig and two cold feet
    Feels good when you know you're down
    A superdope therapod from the oldtown
    And I'm known
    as such
    And this is a beat uh you can touch

    The sauropod has been named Glacialisaurus hammeri (the reason for the genus name is obvious, and Professor Hammer led the field expeditions under 'extremely difficult conditions')

  12. Re:"climates were more equitable across latitudes" by pokerdad · · Score: 3, Informative

    By what mechanism?

    The same mechanisms that are said to cause globabl warming today; CO2 levels for earth peaked in the triassic period at about 3000ppm (currently at 381ppm, under 300ppm pre-industrial revolution). The higher CO2 levels led to higher levels of water vapor, and the two together made earth a big greenhouse.

    Reference

    On a bit of a tangent, I saw an interesting documentary about four years ago where a group of scientists tried to deduce of all the things needed for life on earth, what would run out first. They came to the conclusion that CO2 levels would continue to fall, till Earth became incapable of supporting plant life, and as a result any higher life form.

  13. Re:That's impossible by bob.appleyard · · Score: 5, Funny

    Hear that, penguins?

    Out!

    --
    How dare you be so modest!! You conceited bastard!!
  14. Re:Global Warming by c6gunner · · Score: 2, Funny

    It's a well-known fact that cows produce massive amounts of GHG's.

    So just think how much global warming DINO FARTS would have produced!

    Seriously, it's no wonder our ancestors never got a break until those polluting beasts kicked the bucket.

  15. Re:So what's earth's normal temperature? by derdesh · · Score: 2, Interesting

    You make a very good point. Statistically it is unlikely that today's global temperature is "normal" for our epoch, and that normal baseline almost certainly has changed in the past 10's of millions of years and will continue to change on that same timescale into the future.

    That said, the discussion and concern about "global warming" has nothing to do with what's "normal" for the planet. The concern is for effects that occur too quickly for our societies to adapt without massive disruption and accompanying economic collapse, famine, and war that might accompany such.

    The planet doesn't care, and will be fine in the long run. It's we humans, and our civilization, that worry about survival.

    Also, dinosaurs are cool.

  16. Re:That's impossible by pnewhook · · Score: 2, Funny

    Nothing can live in the antarctic.

    Well that's why they found dinosaur *bones* and not living dinosaurs!

    Duh...

    --
    Tesla was a genius. Edison however was a overrated hack who liked to torture puppies.
  17. Re:"climates were more equitable across latitudes" by pnewhook · · Score: 3, Informative

    then surely the global climate would have been similar to todays and the polar bits (that have moved out of the way now) would have been frozen, as they are today.

    Actually no. The only reason we have ice at the poles is because we are coming out of an ice age. There have only been four known ice ages in the planets history and outside of these (which is the vast majority of the time) the planet, even at the poles and highest latitudes has been ice free.

    The planet has ben changing from completely ice covered to completely ice free long before people ever showed up.

    --
    Tesla was a genius. Edison however was a overrated hack who liked to torture puppies.
  18. C - none of the above by patiodragon · · Score: 2, Informative

    The earth is what? Like hundreds of millions of years old? Only 10 million, okay, whatever...

    The point is the same. Many upon many catastrophic events (HUGE earthquakes, volcanic events, great floods even, recorded by every civilization of the world) change lots of stuff. Plates in the earth move. Sometimes a lot. Antarctica is a moving target on a geological time scale.

  19. Re:That's all good, but, can we drill yet? by RockDoctor · · Score: 2, Interesting

    Ok, if scientists are allowed to dig for dinosaurs, I'd like go set myself up with an oil well for, ummm, "research purposes"...


    A speaker at last month's conference on "South Atlantic Petroleum Systems", where Antarctica was the "elephant seal in the room which no one mentioned", summarised the prospectivity of Antarctica thus : "Don't drill on an Archean shield (East Antarctica); don't drill in an active volcanic island arc (West Antarctica/ Antarctic Peninsula) ; and for the remaining area, where there are real uncertainties about presence of and quality of source rocks, and the thermal history of the area to mature those source rocks, and the sediment sources to provide clastic reservoir rocks ... well in that marine basin you've got to be prepared to dodge icebergs the size of Belgium."

    It's your money. You have the hassle of organising it ; I'll do your wellsite geology. It'll be $1000/day if you're starting in the next 3 years, beyond that I'm not able to commit myself to a price, but it's likely to be higher.
    --
    Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"