Uploaded November 2018 | Updated September 2026, 2 weeks ago
thensi.org - Part 1 of 2. Why is it such a big deal that Theropods might be more closely related to Ornithischians than either is to Sauropods? A (very) brief history of high-level dinosaur phylogenetics.
Like our videos? Consider supporting them through Patreon! patreon.com/thenatsci
Find awesome YDAW products in The NSI store!
thensi.org/store
thensi.org/product-category/ydaw
SOURCES AND LINKS:
Baron, M. G., Norman, D. B., & Barret, P. M.
A new hypothesis of dinosaur relationships and early dinosaur evolution.
Nature Vol. 543, 501–506 (23 March 2017)
doi.org/10.1038/nature21700
Huxley, T. H.
On the Classification of the Dinosauria
with observations on the Dinosauria of the Trias.
Quarterly Journal of the Geological Society, London, XXVI, 32-50 (1870)
Switek, B.
Thomas Henry Huxley and the reptile to bird transition.
From: Dinosaurs and Other Extinct Saurians: A Historical Perspective.
Geological Society, London, Special Publications, 343, 251-263 (2010)
Seeley, H. G.
On the classification of the fossil animals commonly named Dinosauria.
Proc. R. Soc. Lond. 43, 165-171 (1887)
rspl.royalsocietypublishing.org/content/43/258-265/165.full.pdf+html
Galton, P. M. & Bakker, R. T.
Dinosaur Monophyly and a New Class of Vertebrates.
Nature Vol. 248, 168-172 (8 March 1974)
doi.org/10.1038/248168a0
Gauthier, J.
Saurischian Monophyly and the Origin of Birds.
Memoirs of the California Academy of Sciences 8, 1-55 (1986)
biostor.org/reference/110202
FURTHER READING:
pickingbones2.wordpress.com/2017/03/26/first-blog-post
blogs.scientificamerican.com/tetrapod-zoology/ornithoscelida-rises-a-new-family-tree-for-dinosaurs
theropoda.blogspot.com/2017/03/ornithoscelida-20-saurischian-paraphyly.html
theropoda.blogspot.com/2017/11/luci-e-ombre-su-ornithoscelida-e-sulle.html
theropoddatabase.blogspot.com/2017/03/ornithoscelida-lives.html
PHOTOS:
Therizinosaurid teeth photos from
Zanno, et al.
Specializations of the mandibular anatomy and dentition of Segnosaurus galbinensis (Theropoda: Therizinosauria)
(2016)
doi.org/10.7717/peerj.1885
CC BY 4.0
Plateosaurus tooth photo by
Ghedoghedo
commons.wikimedia.org/wiki/File:Plateosaurus_teeth_3478.jpg
CC BY-SA 4.0
Eoraptor tooth photo from
Martinez, R. N., Sereno, P. C., Alcober, O. A., Colombi, C. E., Renne, P. R., Montañez, I. P., & Currie, B. S.
A Basal Dinosaur from the Dawn of the Dinosaur Era in Southwestern Pangaea.
Science Vol. 331, Issue 6014, 206-210 (14 January 2011)
doi.org/10.1126/science.1198467
Reprinted with permission from AAAS.
If you would like to send in a dinosaur for Steve to look at, please ship it to this address:
Steven Bellettini
c/o: The National Science Institute
902 NW Leonard Street
Grand Rapids, MI 49504
Subscribe for more dinos, explosions, science videos, and general geek related awesomeness.
Based in Grand Rapids, Michigan, The National Science Institute provides access to science, technology, engineering and math by developing programming and facilities for individuals and institutions to learn, explore, innovate and play at an independent pace according to their needs. The NSI has many thousands of members scattered across the globe, in every state in the US and one hundred and forty-two countries. Come help us build Awesome!
thensi.org - Part 1 of 2. Why is it such a big deal that Theropods might be more closely related to Ornithischians than either is to Sauropods? A (very) brief history of high-level dinosaur phylogenetics.
Like our videos? Consider supporting them through Patreon! patreon.com/thenatsci
Find awesome YDAW products in The NSI store!
thensi.org/store
thensi.org/product-category/ydaw
SOURCES AND LINKS:
Baron, M. G., Norman, D. B., & Barret, P. M.
A new hypothesis of dinosaur relationships and early dinosaur evolution.
Nature Vol. 543, 501–506 (23 March 2017)
doi.org/10.1038/nature21700
Huxley, T. H.
On the Classification of the Dinosauria
with observations on the Dinosauria of the Trias.
Quarterly Journal of the Geological Society, London, XXVI, 32-50 (1870)
Switek, B.
Thomas Henry Huxley and the reptile to bird transition.
From: Dinosaurs and Other Extinct Saurians: A Historical Perspective.
Geological Society, London, Special Publications, 343, 251-263 (2010)
Seeley, H. G.
On the classification of the fossil animals commonly named Dinosauria.
Proc. R. Soc. Lond. 43, 165-171 (1887)
rspl.royalsocietypublishing.org/content/43/258-265/165.full.pdf+html
Galton, P. M. & Bakker, R. T.
Dinosaur Monophyly and a New Class of Vertebrates.
Nature Vol. 248, 168-172 (8 March 1974)
doi.org/10.1038/248168a0
Gauthier, J.
Saurischian Monophyly and the Origin of Birds.
Memoirs of the California Academy of Sciences 8, 1-55 (1986)
biostor.org/reference/110202
FURTHER READING:
pickingbones2.wordpress.com/2017/03/26/first-blog-post
blogs.scientificamerican.com/tetrapod-zoology/ornithoscelida-rises-a-new-family-tree-for-dinosaurs
theropoda.blogspot.com/2017/03/ornithoscelida-20-saurischian-paraphyly.html
theropoda.blogspot.com/2017/11/luci-e-ombre-su-ornithoscelida-e-sulle.html
theropoddatabase.blogspot.com/2017/03/ornithoscelida-lives.html
PHOTOS:
Therizinosaurid teeth photos from
Zanno, et al.
Specializations of the mandibular anatomy and dentition of Segnosaurus galbinensis (Theropoda: Therizinosauria)
(2016)
doi.org/10.7717/peerj.1885
CC BY 4.0
Plateosaurus tooth photo by
Ghedoghedo
commons.wikimedia.org/wiki/File:Plateosaurus_teeth_3478.jpg
CC BY-SA 4.0
Eoraptor tooth photo from
Martinez, R. N., Sereno, P. C., Alcober, O. A., Colombi, C. E., Renne, P. R., Montañez, I. P., & Currie, B. S.
A Basal Dinosaur from the Dawn of the Dinosaur Era in Southwestern Pangaea.
Science Vol. 331, Issue 6014, 206-210 (14 January 2011)
doi.org/10.1126/science.1198467
Reprinted with permission from AAAS.
If you would like to send in a dinosaur for Steve to look at, please ship it to this address:
Steven Bellettini
c/o: The National Science Institute
902 NW Leonard Street
Grand Rapids, MI 49504
Subscribe for more dinos, explosions, science videos, and general geek related awesomeness.
Based in Grand Rapids, Michigan, The National Science Institute provides access to science, technology, engineering and math by developing programming and facilities for individuals and institutions to learn, explore, innovate and play at an independent pace according to their needs. The NSI has many thousands of members scattered across the globe, in every state in the US and one hundred and forty-two countries. Come help us build Awesome!
