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[dinosaur] Shonisaurus + Luis Chiappe and titanosaurs + Deuterosaurus + oldest mammoth DNA + more




Ben Creisler
bcreisler@gmail.com

Some recent items:

Perseverance lander is on Mars and sending pictures! Search for possible fossil life begins...

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Shonisaurus Gets a Makeover (giant Nevada ichthyosaur had teeth after all)
"Shonisaurus has large, pointed teeth that are deeply rooted"

https://www.hakaimagazine.com/news/shonisaurus-gets-a-makeover/

See from SVP 2016:

https://www.researchgate.net/publication/314316924_BEYOND_THE_SHONISAURUS_DEATH_CULT_NEW_INSIGHTS_INTO_THE_ECOLOGY_AND_LIFE_HISTORY_OF_THE_EARLIEST_GIGANTIC_MARINE_TETRAPOD

"These fossils confirm the presence of teeth in all ontogenetic stages."

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As far as I can find, this new evidence for a toothed Shonisaurus popularis still has not been formally published. Is there any news on a formal paper?

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History of the Shonisaurus discovery site

https://ucmp.berkeley.edu/science/parks/berlin_ichthyosaur.php

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What Riley Black's interesting article does not mention is the status of the huge Shonisaurus sikanniensis from British Columbia, which IS apparently toothless.

Note that the huge Shonisaurus sikanniensis was reclassifiedÂas Shastasaurus in 2011 (free pdf):

https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0019480

Also
https://www.nationalgeographic.com/science/phenomena/2011/05/25/shastasaurus-sucked/

However, the Royal Tyrrell Museum website still calls the fossil Shonisaurus sikanniensis

https://tyrrellmuseum.com/whats_on/exhibits/triassic_giant

Mark Witton's 2020 blog about giant ichthyosaurs classifies the British Columbia giant as Shonisaurus sikanniensis but does not mention the new evidence that Shonisaurus popularis had strong teeth in its jaws...

In pursuit of giant pliosaurids and whale-sized ichthyosaurs

https://markwitton-com.blogspot.com/2020/04/in-pursuit-of-giant-pliosaurids-and.html


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Paleo Nerds Podcast Episode #23
In the Valley of the Tiny Titanosaurs with Luis Chiappe

https://www.paleonerds.com/podcast/luischiappe

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Slothful claw sensing infrasound (Nothronychus) (in Czech)
Â
https://dinosaurusblog.com/2021/02/18/lenivy-drap-vnimajici-infrazvuk/

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Deuterosaurus, dinocephalian from Permian of Russia (in Russian)

https://elementy.ru/kartinka_dnya/1313/Vseyadnyy_deyterozavr


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Japanese Cretaceous "pterosaur" scapula turns out to be a soft-shelled trionychid turtle

https://mainichi.jp/english/articles/20210210/p2a/00m/0na/011000c

In Japanese with more details. The fossil was never formally described but was labeled "Hitachinaka Ryu" in a museum. ,

https://mainichi.jp/articles/20210211/ddm/012/040/084000c

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Terrible Lizards Podcast S03E04 Jurassic Park
Â
https://terriblelizards.libsyn.com/s03e04-jurassic-park

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Interview about dinosaurs with paleontologists Vladimir Socha and Daniel Madzia on Czech TV (giant titanosaurs, T. rex, Burianosaurus augustai (Czech ornithopod), extinction of dinosaurs and much more) (in Czech)

https://www.ceskatelevize.cz/porady/10441294653-hyde-park-civilizace/221411058090213/

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Diamantinasaurus nominated as state fossil for Queensland, Australia

https://www.brisbanetimes.com.au/national/queensland/fossil-fans-dug-deep-to-decide-dino-should-get-queensland-nod-20210216-p5731c.html

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Videos:

SAURIERLAND WESTFALEN 03| Ichthyosaurus - Ein "Fischsaurier" wird filetiert (video in German)
[WESTPHALIA, LAND OF THE SAURIANS 03 | Ichthyosaurus - A "fishlizard" gets filleted]

The title of this final episode is a bit misleading. The first 10 minutes are about recovering microfossils from the Lower Cretaceous clay pit site in Balve, with bones and teeth of dinosaurs, crocodiles, pterosaurs, and mammals, plus a rib fragment from an Iguanodon-like dinosaur in the lab. Only about the last 6 minutes are about Jurassic ichthyosaur fossils found in Westphalia (JÃllenbeck) in much harder rock.
Â
https://www.youtube.com/watch?v=mQTuclWcpx8

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The Return of Giant Skin-Shell Sea Turtles
PBS Eons

https://www.youtube.com/watch?v=Tmb8XCwb3FI

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Non-dino:


Million-year-old mammoth genomes shatter record for oldest ancient DNA

https://media.nature.com/original/magazine-assets/d41586-021-00348-w/d41586-021-00348-w.pdf

Also:

https://www.su.se/english/news/world-s-oldest-dna-reveals-how-mammoths-evolved-1.541211

https://phys.org/news/2021-02-world-oldest-dna-reveals-mammoths.html

https://theconversation.com/we-sequenced-the-oldest-ever-dna-from-million-year-old-mammoths-155485

https://www.scientificamerican.com/article/mammoth-genomes-shatter-record-for-oldest-dna-sequences/

https://www.nationalgeographic.com/science/article/million-year-old-mammoth-teeth-yield-worlds-oldest-dna

https://www.sciencenews.org/article/oldest-animal-dna-ever-recovered-mammoth-evolution

https://www.livescience.com/mammoth-oldest-sequenced-dna-on-record.html

https://www.npr.org/2021/02/17/968760649/million-year-old-dna-samples-pulled-from-mammoth-teeth

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video

Worldâs oldest DNA reveals how mammoths evolved
Stockholm University

https://www.youtube.com/watch?v=kDSMxRpBnP0

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NATURE PODCAST Â17 FEBRUARY 2021
A mammoth discovery: oldest DNA on record from million-year-old teeth

https://www.nature.com/articles/d41586-021-00442-z


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Ref:Â

Tom van der Valk, PatrÃcia PeÄnerovÃ, David DÃez-del-Molino, Anders BergstrÃm, Jonas Oppenheimer, Stefanie Hartmann, Georgios Xenikoudakis, Jessica A. Thomas, Marianne Dehasque, Ekin SaÄlÄcan, Fatma Rabia Fidan, Ian Barnes, Shanlin Liu, Mehmet Somel, Peter D. Heintzman, Pavel Nikolskiy, Beth Shapiro, Pontus Skoglund, Michael Hofreiter, Adrian M. Lister, Anders GÃtherstrÃm & Love DalÃn (2021)
Million-year-old DNA sheds light on the genomic history of mammoths.
Nature (advance online publication)
DOI: 10.1038/s41586-021-03224-9
https://www.nature.com/articles/s41586-021-03224-9

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Polar DinoFest: Dan Ksepka -- Penguins are dinosaurs too

https://nhmu.utah.edu/blog/2021/polar-dinofest-dan-ksepka

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Crocodile evolution rebooted by Ice Age glaciations

https://phys.org/news/2021-02-crocodile-evolution-rebooted-ice-age.html

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