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[dinosaur] T. rex collagen evidence from X-ray diffraction+ pterosaur egg search in Brazil + more






Ben Creisler
bcreisler@gmail.com



Tough times for paleoblogs...

The Guardian newspaper science blogs will end in August--they had some great paleo stuff.

Darren Naish's informative, entertaining, and sometimes provocative Tetzoo blog is ending July 31, at least with Scientific American (podcast will continue presumably)

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X-ray diffraction confirms soft tissue collagen preservation in T. rex bones

Joseph Orgel of the Illinois Institute of Technology has studied Tyrannosaurus rex bones using X-ray diffraction. In a presentation at the 68th annual meeting of the American Crystallographic Society in Toronto, he discussed evidence of preserved collagen fibers in T. rex bone based on X-ray diffraction techniques.

abstract

Contemporary and ancient tissues give modern insights into biomedical engineering
Joseph Orgel of the Illinois Institute of Technology

One of the most serious impediments to the study of traumatic injury is the lack of meaningful primary mechanical damage criteria at the molecular level. This study addresses this, through the use of novel imaging technologies such as a newly developed Xray Diffraction (XRD) scanning methodology, applied to systemically loaded animal models of both brain and connective tissue injury and accompanied by conventional microscopy for crosscorrelation of observations. Interestingly, this same technique reveals the state and status of soft tissue preserved in T-rex fossilized bone.

https://vo-general.s3.amazonaws.com/eab3cf3c-5ef2-412c-8c31-d2d97d5b7a00/25d4636a-9fa0-4b61-a599-4056cfcea6dd?AWSAccessKeyId=AKIAJ3YBR5GY2XF7YLGQ&Expires=1618945628&response-content-disposition=inline%3B%20filename%3D%22180327-ACA-abstract.pdf%22&response-content-type=application%2Fpdf&Signature=sHHDHtxuC02kIQ4Bj200L8ivBwY%3D

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A similar talk from 2017 is mentioned here:

Those living with traumatically induced injuries, including but not limited to, Traumatic Brain Injury (TBI), face an elevated risk for developing chronic health issues including Alzheimerâs disease (AD) or AD-like dementia and depression. One of the most serious impediments to the study of traumatic injury is the lack of meaningful primary mechanical damage criteria at the molecular level. This study addresses this, through the use of novel imaging technologies such as a newly developed X-ray Diffraction (XRD) scanning methodology, applied to systemically loaded animal models of both brain and connective tissue injury and accompanied by conventional microscopy for cross-correlation of observations. Interestingly, this same technique reveals the state and status of soft tissue preserved in T-rex fossilized bone.

https://crystallography.conferenceseries.com/abstract/2017/x-ray-diffraction-reveals-the-mechanical-load-tolerance-of-mammalian-nerve-muscle-and-tendon-in-traumatically-induced-injury-and-the-vertebrate-identity-of-fossilized-t-rex-bone



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In Chinese (online translation):

Among the potentially controversial results, Orgel's X-ray diffraction data shows a large number of crystalline tissue components from dinosaur fossils. Orgel explained that although experts studying collagen agreed on the results, paleontologists have yet to reach a consensus on this finding because it breaks the long-standing paradigm in this field. âPeople donât want to believe that in a number of fossil samples that have been placed on museum shelves, a considerable amount of organization has actually been preserved."


http://www.uua.cn/show-9-8820-1.html


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The Jurassic's Big 5
If you could travel back to the time of the Morrison Formation, these are the dinosaurs you'd see

https://blogs.scientificamerican.com/laelaps/the-jurassics-big-5/

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More on new sauropod found in Burgos region of Spain (in Spanish)

http://www.nationalgeographic.com.es/ciencia/actualidad/provincia-burgos-los-huesos-nueva-especie-dinosaurio-sauropodo_12995


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Neovenator from Isle of Wight on display in Japan for Theropods: from Carnivorous Dinosaurs to Flying Birds exhibit at Fukui Prefecture Dinosaur Museum

https://iwradio.co.uk/2018/07/26/isle-of-wight-dinosaur-travels-to-japan/


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New mural at Holyoke Dinosaur Footprints Park elicits Jurassic

https://www.masslive.com/news/index.ssf/2018/07/mural_unveiled_at_holyoke_dino.html

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Digging For Dinosaurs In Texas: Whatâs Happening In The World Of Paleontology? (audio)

https://www.houstonpublicmedia.org/articles/shows/houston-matters/2018/07/24/296904/digging-for-dinosaurs-in-texas-whats-happening-in-the-world-of-paleontology/

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Paleontologists search for pterosaur eggs at Cruzeiro do Oeste in Parana region of Brazil (with video) (in Portuguese)

https://exame.abril.com.br/ciencia/cientistas-esperam-encontrar-ovos-de-pterossauros-no-parana/



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Scientists search for dinosaur footprints at one-time imperial summer resort in China

http://www.ecns.cn/news/sci-tech/2018-07-25/detail-ifywnmyq4940823.shtml


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The Cretaceous marine reptile fauna of Colombia (in Spanish)
La fauna marina boyacense de hace 125 millones de aÃos


http://www.eltiempo.com/vida/ciencia/fauna-marina-boyacense-de-hace-millones-de-anos-247522

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Mamenchisaurus spelling is based on mistake in Chinese pronunciation. Yang Zhongjian (C. C. Young) originally named the dinosaur for the Mamingxi Ferry--the bones were discovered during construction work. Because of his accent, however, the name was misheard by others as "Mamenxi" "Horse-gate Stream," resulting in the current name. (in Chinese)

http://www.uua.cn/show-13-8812-1.html


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videos

Museum on the Move: Excavating the Edmontosaurus
University of Michigan College of Literature, Science, and the Arts


https://www.youtube.com/watch?v=fSc0oLyXotM&feature=youtu.be


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When Fish Wore Armor
PBS Eons

https://www.youtube.com/watch?v=5pVTZH1LyTw

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non-dino:


Unidentifiable fossils: palaeontological problematica

https://www.theguardian.com/science/2018/jul/26/unidentified-fossils-palaeontological-problematica