Dimetrodon: YDAW Archive (Re-upload + Corrections)

https://www.patreon.com/YDAW -- The show began its life on another channel several years ago. Now that we have a channel of our own, we're slowly bringing those episodes over to join our newer ones (with added corrections/updates). Fourth is Dimetrodon! Check out our merch: https://ydawtheshop.etsy.com Playlist of all of our older videos here: https://youtube.com/playlist?list=PL4V5MsSrz9qcpiIlYb7ddYHYwhJP-n8hD - Contents: 0:00 Original Episode 8:11 Addenda 8:55 Synapsids & Sauropsids 9:34 Gait & Activity 10:32 Size Variation 10:55 Mouth & Teeth 12:25 Neck (or lack thereof) 13:22 Nose, suppose 14:20 Hearing 15:50 Tail Uncertainty 17:54 Hip & Ankle 18:59 "Spinescence" 20:31 Sail Shape 23:31 Posture 24:38 Scales? 25:45 Conclusion - For more updates and paleo-related fun, follow us: Twitter: https://twitter.com/YDAWtheShow Facebook: https://www.facebook.com/YDAWtheShow Instagram: https://www.instagram.com/yourdinosaursarewrong/ Discord: https://discord.gg/B72YH6u Ko-fi: https://ko-fi.com/ydawtheshow - Sources & Links: Case, E. C. (1907) Revision of the Pelycosauria of North America (No. 55). Carnegie Institution of Washington. https://www.google.com/books/edition/Revision_of_the_Pelycosauria_of_North_Am/7QMDAAAAIAAJ Gilmore, C. W. (1919) A mounted skeleton of Dimetrodon gigas in the United States National Museum, with notes on the skeletal anatomy. Proceedings of the United States National Museum 56 (2300): 525-539. https://repository.si.edu/handle/10088/15096?show=full Romer, A. S. (1927) Notes on the Permo-Carboniferous Reptile Dimetrodon. Journal of Geology. https://doi.org/10.1086/623462 Olson, E. C. (1962) Late Permian Terrestrial Vertebrates, U.S.A. and U.S.S.R. Transactions of the American Philosophical Society, 52(2), 1–224. https://doi.org/10.2307/1005904 Hunt, A. P., & Lucas, S. G. (1998) Vertebrate tracks and the myth of the belly-dragging. Permian Stratigraphy and Paleontology of the Robledo Mountain, New Mexico: Bulletin 12, 12, 67. https://www.google.com/books/edition/Permian_Stratigraphy_and_Paleontology_of/-GgdCgAAQBAJ?pg=PA67 Kemp, T. S. (2006) The origin and early radiation of the therapsid mammal-like reptiles: a palaeobiological hypothesis. Journal of Evolutionary Biology, 19(4), 1231–1247. https://doi.org/10.1111/j.1420-9101.2005.01076.x Niedźwiedzki, G., & Bojanowski, M. (2012) A Supposed Eupelycosaur Body Impression from the Early Permian of the Intra-Sudetic Basin, Poland. Ichnos, 19(3), 150–155. https://doi.org/10.1080/10420940.2012.702549 Kubo, T., & Ozaki, M. (2009) Does pace angulation correlate with limb posture? Palaeogeography, Palaeoclimatology, Palaeoecology, 275(1), 54–58. https://doi.org/10.1016/j.palaeo.2009.02.001 Huttenlocker, A. K., Rega, E., & Sumida, S. S. (2010) Comparative anatomy and osteohistology of hyperelongate neural spines in the sphenacodontids Sphenacodon and Dimetrodon (Amniota: Synapsida). Journal of Morphology, 271(12), 1407–1421. https://doi.org/10.1002/jmor.10876 Fröbisch, J., Schoch, R. R., Müller, J., Schindler, T., & Schweiss, D. (2011) A new basal sphenacodontid synapsid from the Late Carboniferous of the Saar-Nahe Basin, Germany - Acta Palaeontologica Polonica. Acta Palaeontol. Pol. 56 (1): 113–120, 201 https://doi.org/10.4202/app.2010.0039 Berman, D. S., Reisz, R. R., Martens, T., & Henrici, A. C. (2011) A new species of Dimetrodon (Synapsida: Sphenacodontidae) from the Lower Permian of Germany records first occurrence of genus outside of North America. Canadian Journal of Earth Sciences. https://doi.org/10.1139/e00-106 Rega, E. A., Noriega, K., Sumida, S. S., Huttenlocker, A., Lee, A., & Kennedy, B. (2012) Healed Fractures in the Neural Spines of an Associated Skeleton of Dimetrodon: Implications for Dorsal Sail Morphology and Function. Fieldiana Life and Earth Sciences, 2012(5), 104–111. https://doi.org/10.3158/2158-5520-5.1.104 Brink, K. S., & Reisz, R. R. (2014) Hidden dental diversity in the oldest terrestrial apex predator Dimetrodon. Nature Communications, 5(3269), 1–9. https://doi.org/10.1038/ncomms4269 Hopson, J. A. (2015) Fossils, trackways, and transitions in locomotion. In Great transformations in vertebrate evolution (pp. 125-141). University of Chicago Press Chicago IL. https://www.google.com/books/edition/Great_Transformations_in_Vertebrate_Evol/zb5TCgAAQBAJ?pg=PA125 Scott Hartman (2016) "Taking a 21st century look at Dimetrodon" Dr. Scott Hartman's Skeletal Drawing.com https://www.skeletaldrawing.com/home/21stcenturydimetrodon Higashiyama, H., Koyabu, D., Hirasawa, T., Werneburg, I., Kuratani, S., & Kurihara, H. (2021) Mammalian face as an evolutionary novelty. Proceedings of the National Academy of Sciences, 118(44), e2111876118. https://doi.org/10.1073/pnas.2111876118 Bazzana-Adams, K. D., Evans, D. C., & Reisz, R. R. (2023) Neurosensory anatomy and function in Dimetrodon, the first terrestrial apex predator. iScience, 26(4), 106473. https://doi.org/10.1016/j.isci.2023.106473 #ydaw #ep04 #dimetrodon