/ ydaw -- Dilophosaurus was not just a giant Coelophysis! Let's talk about research into their appearance and ecology that's come out since our episode--and a couple things we should have mentioned the first time around.
Previous Dilophosaurus episode here: • Dilophosaurus: Your Dinosaurs Are Wro...
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Contents:
0:00 What is Dilophosaurus Anyway?
2:11 Macropredation Adaptations
6:50 Those Crests
13:04 Stop Asking Me About the Frill
15:56 Venom Also Unlikely
17:08 Protofeathers
20:00 Arm Function & Dysfunction
25:45 Conclusion
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photo of Dilophosaurus cast at the Royal Ontario Museum by Eduard Solà
CC-BY-SA 3.0
https://commons.wikimedia.org/wiki/Fi...
but see also
https://ucmp.berkeley.edu/dilophosaur...
the original wall mount, much more obvious which bones are sculpted/cleaned up
Chlamydosaurus photo by Miklos Schiberna
Public Domain
Cobra tooth cross section based on Martin-rnr's vector
CC-BY-SA 3.0
https://en.wikipedia.org/wiki/File:Co...
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Marsh AD, Rowe TB.
2020
A comprehensive anatomical and phylogenetic evaluation of Dilophosaurus wetherilli (Dinosauria, Theropoda) with descriptions of new specimens from the Kayenta Formation of northern Arizona.
Journal of Paleontology 94(78): 1–103
https://doi.org/10.1017/jpa.2020.14
(OA)
Rowe, T. B., Sues, H.-D., & Reisz, R. R.
2011
Dispersal and diversity in the earliest North American sauropodomorph dinosaurs, with a description of a new taxon.
Proceedings of the Royal Society B: Biological Sciences, 278(1708), 1044–1053.
https://doi.org/10.1098/rspb.2010.1867
Persons IV, W., Currie, P.
2011
An approach to scoring cursorial limb proportions in carnivorous dinosaurs and an attempt to account for allometry.
Sci Rep 6, 19828
https://doi.org/10.1038/srep19828
Gates T, Organ C, Zanno L.
2016
Bony cranial ornamentation linked to rapid evolution of gigantic theropod dinosaurs.
Nat Commun 7, 12931
https://doi.org/10.1038/ncomms12931
(OA)
Angst, D., Barnoud, J., Cornette, R., & Chinsamy, A.
2019
Sex and Ontogenetic Variation in the Crest of Numida meleagris: Implications for Crested Vertebrates.
Anatomical Record, 303(4), 1018–1034.
https://www.doi.org/10.1002/ar.24275
Shay D, Duncan J.
The Making of Jurassic Park.
New York: Boxtree Ltd
1993
De Vis, C.W.
1883
Myology of Chlamydosaurus kingii.
Proceedings of the Linnean Society of New South Wales, v.8, no.29-32.
https://www.biodiversitylibrary.org/p...
(OA)
Montandon, S. A., Fofonjka, A., & Milinkovitch, M. C.
2019
Elastic instability during branchial ectoderm development causes folding of the Chlamydosaurus erectile frill.
eLife.
https://doi.org/10.7554/eLife.44455.002
(OA)
Lovelace, D.M., Hartman, S.A., Mathewson, P.D., Linzmeier, B.J., Porter, W.P.
2020
Modeling Dragons: Using linked mechanistic physiological and microclimate models to explore environmental, physiological, and morphological constraints on the early evolution of dinosaurs.
PLoS ONE 15(5): e0223872
https://doi.org/10.1371/journal.pone....
(OA)
Ichnology of New England
Edward Hitchcock
Commonwealth of Massachusetts
1858
https://archive.org/details/bub_gb_QU...
Supplement to the Ichnology of New England
Edward Hitchcock
Commonwealth of Massachusetts
1865
Gierliński, G.
1996
Feather-like impressions in a theropod resting trace from the Lower Jurassic of Massachusetts.
In The Continental Jurassic (ed. Morales, M.), pp. 179–84.
Museum of Northern Arizona Bulletin Volume 60
Kundrat, M.
2004
When Did Theropods Become Feathered? Evidence for Pre-Archaeopteryx Feathery Appendages
JOURNAL OF EXPERIMENTAL ZOOLOGY (MOL DEV EVOL) 302B:355–364
https://doi.org/10.1002/jez.b.20014
Martin, A.J.
A theropod resting trace that is also a locomotion trace: case study of Hitchcock's specimen AC 1/7.
Northeastern Section (39th Annual) and Southeastern Section (53rd Annual) Joint Meeting, Paper No. 38-6
(March 26, 2004)
Senter, P.J., Sullivan, C.
2019
Forelimbs of the theropod dinosaur Dilophosaurus wetherilli: Range of motion, influence of paleopathology and soft tissues, and description of a distal carpal bone.
Palaeontologia Electronica 22.2.30A 1-19.
https://doi.org/10.26879/900
(OA)
Senter, P., Juengst, S.L.
2016
Record-Breaking Pain: The Largest Number and Variety of Forelimb Bone Maladies in a Theropod Dinosaur
PLoS ONE 11(2): e0149140
https://doi.org/10.1371/journal.pone....
(OA)
see also
https://dinoproject.blogs.bristol.ac....
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