New Amargasaurus Paper Trades Spines For Fins - Will It Hold Up?

Sauropods are pretty boring. They stayed the same for over one hundred million years till they got smacked to death by a super-fast space ball rock. Tiny heads, long necks, long tails, rotund bodies, and four columnar legs. Well…for the most part. The parts that changed between the different lineages of long necked leviathans, were the backbones. Everything from the base of the skull to the tip of the tail differed from one species to the next.
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RESEARCH
Bailey, J. (1997) Neural spine elongation in dinosaurs: Sailbacks or buffalo-backs? Journal of Paleontology, 71, 1124–1146. https://doi.org/10.1017/S002233600003...

Cerda, I.A., Novas, F.E., Carballido, J.L. & Salgado, L. (2022) Osteohistology of the hyperelongate hemispinous processes of Amargasaurus cazaui (Dinosauria: Sauropoda): Implications for soft tissue reconstruction and functional significance. Journal of Anatomy, 00, 1– 15. Available from: https://doi.org/10.1111/joa.13659

Salgado, L. & Bonaparte, J.F. (1991) Un nuevo saurópodo Dicraeosauridae Amargasaurus cazaui gen. et sp. nov., de la Formación La Amarga, Neocomiano de la provincia del Neuquén, Argentina. Ameghiniana, 28, 333–346.

Schwarz, D., Frey, E. & Meyer, C.A. (2007) Pneumaticity and soft−tissue reconstructions in the neck of diplodocid and dicraeosaurid sauropods. Acta Palaeontologica Polonica, 52, 167–188.

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