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This video is a short excerpt from the museum intro video I created for the Saint George Dinosaur Discovery Site museum in Saint George Utah. For information about visiting this fascinating museum built over an early Jurassic dinosaur tracksite visit their website: utahdinosaurs....
Many small museums are struggling with the Covid 19 shutdown, and the Saint George Dinosaur Discovery Site is no exception. In fact their lead paleontologist Andrew Milner has been furloughed for several months now. If you'd like to help the Saint George Dinosaur Discovery Site get through this hard time, and help them make more projects like this possible, consider making a donation in support of the museum here: utahdinosaurs....
This section is a short explanation of the most up-to-date understanding of the early Jurassic dinosaur Dilophosaurus, based on the recent research of Paleontologist Dr. Adam Marsh (Petrified Forest National Park).
/ notthatmarsh
Paleontologist Dr. Adam Marsh's massive manuscript redescribing Dilophosaurus was published today by Cambridge University Press, which will generously provide this important volume as an open access publication in a few days. (I will add the Open Access link here as soon as the Open Access link is live)
Permalink to the paper here: doi.org/10.101...
The reconstruction of Dilophosaurus featured in this museum video for the Saint George Dinosaur Discovery Site is based on Adam's work, and is the only skull / head reconstruction that incorporates all of the known specimens, while also taking into account the 3 dimensional structure of the skull and crests. By observing the fossils in detail we recognized that the strange cranial crests of Dilophosaurus are in fact formed by dorsally expanded antorbital fenestrae, and thus would have been connected to the nasal sinuses, and thus would have been enclosed in a durable dermal covering or horny keratinous sheath, as is inferred for the pneumatic naso-lacrimal crests of many non-bird theropods.
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