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[dinosaur] DinoFest 2018 talks + dinosaur colors + Antarctic theropod + Jurassic gliders + more

Ben Creisler

Some recent items:


DinoFest 2018 at Natural History Museum of Utah videos
(sound is a bit echoey and screens are a bit hard to see)

Paul GignacÂ

Royal Appetite: How Tyrannosaurus rex Dined on the Bones of Cretaceous Dinosaurs



Mark Loewen

Allosaurus in Motion: Bringing a Jurassic Predator to Life



James O. FarlowÂ

Big vs. Bouncy: Body Size, Limb Proportions, and Relative Stride Length in Bipedal Dinosaurs



Dan ChureÂ

Tracking Ancient Animals in an Ancient Desert: Dinosaurs and Other Creatures of the Nugget Sandstone" at the Natural History Museum of Utah



Brian Switek dinosaur talk



Carrie Levitt BussianÂ

Ceratopsian limb bone histology



Tylor Birthisel

Warner County dinosaur tracks



How colorful and feathery were the dinosaurs?



How birds followed the way of the dinosaurs



Antarctic theropod dinosaur to get full description and name

Research sheds new light on EWU professorâs Antarctic dino-discovery


[link posted earlier of talk video:

https://www.youtube.com/watch?v=kSovD7H5D6w&t=2s   ]


Gulf Coast Exploreum Science Center in Mobile, Alabama: "Permian Monsters: Life Before the Dinosaurs." (with video)



Lourinha Formation

FormaÃÃo da LourinhÃÂ (in Portuguese)




In French:

Gliding mammals of the Jurassic

Planeurs à poil du Jurassique

Jean-Louis Hartenberger




The scarlet ankylosaur : new info on the color of dinosaurs

Lâankylo Ãcarlate : du nouveau sur la couleur des dinos

Jean Le Loeuff



In Czech:

"Unknown" giant theropod Chilantaisaurus



The debate about what caused dinosaur extinction continues

https://dinosaurusblog.com/2018/02/13/debata-o-pricinach-vyhynuti-dinosauru-pokracuje/Â Â


Theropod track site at Monte Cagno in Italy gets cultural importance decree that could lead to development of site in the future (in Italian)Â



Ocean tides could have driven ancient fish to walk

Evolution of land-walking animals may have started with fish that were stranded in tidal pools.




PL41A-02: Tides: A Key Driver in the Evolution of Terrestrial Vertebrates?

Thursday, February 15, 2018Â 08:15 AM - 08:30 AM Oregon Convention Center - B113-B115
Vertebrates have made a sea-to-land transition only once, which must have occurred prior to 395 Ma as documented through the discovery of a stem-tetrapod trackway in the Hold Cross mountains, Poland. The mechanisms behind such a transition are disputed, but biological perspectives suggest that it was a gradual progression and the symbiotic relationship of competition. Here, we hypothesise that the presence of strongly modulated tides may have been a significant driver in the transition. A large spring-neap range would have created a large intertidal zone, thus stranding sarcopterygians for several days. To survive, individuals with limbs better adapted to terrestrial navigation could flail back into the sea. These isolating tides may have paved the way for the emergence of terrestrial vertebrates. We evaluate the hypothesis by producing tidal simulations of the Siluro-Devonian period using paleogeographic plate reconstructions for two time slices prior to the trackway date. The analysis focuses on the resulting semi-diurnal tide and spring-neap range. The results show remarkable correlation between the location of both large semi-diurnal and spring-neap ranges (>4m) and notable fossil location and findings. For the 430 Ma time slice, these are concentrated around South China where the earliest evidence of lungs is found, at around 423 Ma. With the 400 Ma time slice, large ranges were located around Laurussia, where most stem-tetrapod fossils are believed to have originated. These results support the hypothesis, further suggesting the tides as a key driver in the development of not only limbs, but lungs also. In terms of tidal dissipation, the 430 Ma time slice is more energetic than the past 250 Ma. Indeed, the 400 Ma time slice is less energetic than the 430 Ma time slice, implying that the tides may go through a maxima/minima cycle in conjunction with the supercontinent cycle.


Devonian tetrapod tracks in Poland are now thought to be freshwater rather than marine...

Martin QvarnstrÃm, Piotr Szrek, Per E. Ahlberg & Grzegorz NiedÅwiedzki (2018)
Non-marine palaeoenvironment associated to the earliest tetrapod tracks.
Scientific Reports 8, Article number: 1074 (2018)


London Review of Books review of "Palaeoart: Visions of the Prehistoric Past"Â
Feathered, Furred or Coloured


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