Dimetrodon: YDAW Archive (Re-upload + Corrections)

Published: 01 January 1970
on channel: Your Dinosaurs Are Wrong

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  / 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!

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Playlist of all of our older videos here:    • Older YDAW Episodes
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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

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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/...

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/1008...

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/...

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.1420-9101.2...

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...

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...

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...

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/...

Scott Hartman
(2016)
"Taking a 21st century look at Dimetrodon"
Dr. Scott Hartman's Skeletal Drawing.com
https://www.skeletaldrawing.com/home/...

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.2023.1...

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