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  1. #1
    Predator X Mushroomsock's Avatar
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    Quadruped Spino... GONE!

    Yep, they finally re-wrote the paper. Quadruped Spino is now dis-proven.

    One of the bone sources was from Sigilmassasaurus, not Spinosaurus.

    For everyone that wants to see the study for themselves:

    https://peerj.com/articles/1323/

  2. #2
    Hail Denmark! Bartbrink1996's Avatar
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    I thought the quadruped Spino was already disproven? Or is it now official since they have rewritten the paper?
    "No matter what the future may bring, some things will never change! Like the courage and daring of true heroes!" RIP Bionicle.

  3. #3
    Philosoraptor robo-ve-tranic's Avatar
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    spino is no longer as speacil


    invalid signiture space please refrain from saying goose otherwise the world might explode

  4. #4
    Philosoraptor
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    See guys, I was telling it isn't all the time. Thanks for link ASDFG.

    Now bow down to me as an apology.

  5. #5
    Primal Carnage Team dinosauriac's Avatar
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    Science marches on... Honestly quite interested to hear more about Sigilmassasaurus now.

  6. #6
    The one and only. Primitive's Avatar
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    And simultaneously, 10-year-old boys all over the world jumped in joy.

  7. #7
    This one is by a different set of authors from the one that argued for quadrupedal Spinosaurus; no one is "rewriting" anything. It doesn't address quadrupedality directly, but it suggests that not all the material used in reconstructing Spinosaurus in the previous paper can be confidently assigned to Spinosaurus.

  8. #8
    Philosoraptor Hemlock's Avatar
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    Quote Originally Posted by albertonykus View Post
    This one is by a different set of authors from the one that argued for quadrupedal Spinosaurus; no one is "rewriting" anything. It doesn't address quadrupedality directly, but it suggests that not all the material used in reconstructing Spinosaurus in the previous paper can be confidently assigned to Spinosaurus.
    So, still quad spino, or no? This sucks because quadrupled spino is really unique and cool.

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  9. #9
    Philosoraptor T-Rex Terror's Avatar
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    Quote Originally Posted by Primitive View Post
    And simultaneously, 10-year-old boys all over the world jumped in joy.
    I laughed way too hard than i should have



    "Those dang T-rex wanna-be class players!"


  10. #10
    Predator X Cnicko's Avatar
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    I for one am quite pleased with this. Bipedal always seemed slightly cooler to me.

  11. #11
    Sweet, Bipedal looks cooler.
    Killin dinos all day.
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  12. #12
    Predator X Spinoraptyrex's Avatar
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    I just hope they find a complete skeleton one day so this back-and-forth with the spinosaurus can stop.

  13. #13
    Predator X BritishQuetzalcoatlus♀'s Avatar
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    Yaaasss bipedal is back quadruped was interesting though, I hope a full skeleton will be found eventually so we can found out what spino really looked like. I swear if I can pull off my Geology GCSE, A level and do it in university im going to do Palentology.

  14. #14
    Spinosaurus was never quadrupedal in the first place... Quadrupedality is physically impossible for theropods. Also, Sigilmassasaurus may be an invalid genus anyway, so it's kind of a moot point.

    Spinosaurus still had tiny legs though. That's not really up for debate at this point.

  15. #15
    Ibrahim et al. (2014) argued that Spinosaurus was quadrupedal on the basis of its reconstructed center of gravity. Many other paleontologists are skeptical and have offered possible alternatives. The skepticism is warranted in my opinion, but there has been no rebuttal in the scientific literature yet on this specific point (including in the paper linked in the OP). It doesn't help that we do not have complete Spinosaurus forelimbs that could settle the problem.

    If Sigilmassasaurus is demonstrably distinct from other known theropods (as the new paper argues), then it is not an invalid genus. In addition, they do call into question the association of the tiny legs with the rest of the body in the new Spinosaurus specimen. Whether one buys their arguments is another matter.

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