8 - Spinophorosaurus, is the reason why Diplodocus lost it's main trait.

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It is December, it's quarter past the 3rd Corana wave and I am here to celebrate the things I got to see in Museums this year while we are close to another lockdown.
First:

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Dino Fact!

Spinophorosaurus (Spine-bearing Lizard) is a sauropod from Middle Jurassic Africa! It had spikes at the end of its tail, similar to the thagomizers stegosaurs had! It might've used its tail spikes for defense, but it's unclear for now!

Art by Zealandiatherium!

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2eme remarque: c'est difficile de se baser sur des ratios patte avant/patte arrière quand justement il manque une bonne partie des pattes avant (c'est le cas pour Spinophorosaurus)! Alors oui on peut faire des approximations avec des espèces proches, mais c'est moins bien! 11/15

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All in all, Spinophorosaurus is congruent with some previous results by Stevens and Parrish (presacral series is almost straight), but not others (neck is more flexible than their analyses suggested, and the keystone is not on the cervico-dorsal transition, but the sacrum) 11/n

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To understand how much more range of motion had in its neck per joint, here's a comparison between Spino (27º), (20º) and (17º) at the DV1-CV12 joint (from the supplementary). One key factor is prezygapophysis elongation 10/n

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Another brilliant kinematics paper by et al! Digitally assembling shows how wedge shaped sacral and posterior dorsal verts & elongate forelimbs aided in more vertical posturing and higher browsing. Great paper!

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Totally Forgot to share these highlights from the last Akmoniston, Albertonykus, Nimbadon, Spinophorosaurus. Next weekend we will have our Christmas streams! Expect polar and ice age animals, Christmas music discussions of the papers that where published this week!

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Spinophorosaurus herd in the desert. Enjoy ;) Click on the image to order print or any POD. Thanks ;) https://t.co/YdzIf3W2KQ

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Spinophorosaurus lamp shade. Click on the image to order this lamp. Thank you ;) https://t.co/vWlevxFldA

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