Sunday, October 24, 2021
Dinosaur

Dinosaur

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Ecological changes following intense volcanic activity 230 million years ago paved the way for dinosaur dominance
Dinosaur

Dinosaurs’ ascent driven by volcanoes powering climate change

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The extinction of their competitors allowed snakes to move into new niches and diversify enormously (Credit: Joschua Knüppe).
Dinosaur

Modern snakes evolved from a few survivors of dino-killing asteroid

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University of Tsukuba researchers have described a new apex predator from the lower Upper Cretaceous of Central Asia, Ulughbegsaurus uzbekistanensis, which coexisted with a smaller tyrannosauroid
Dinosaur

Who was king before Tyrannosaurus? Uzbek fossil reveals new top dino

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Early lineages of mammal like this large Gobiconodon from Mongolia, outcompeted the ancestors of modern mammals in the time of dinosaurs. Credit: Corbin Rainbolt
Dinosaur

Mammals in the time of dinosaurs held each other back

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Hesperornis image provided by the Yale Peabody Museum of Natural History. (Photo: Robert Lorenz)Hesperornis image provided by the Yale Peabody Museum of Natural History. (Photo: Robert Lorenz)
Dinosaur

What can a dinosaur’s inner ear tell us? Just listen

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"Hollywood" specimen, same species as Teratophoneus, discovered approximately two miles north of the "Rainbows and Unicorns Quarry" on Grand Staircase-Escalante National Monument. Credit: U.S. Bureau of Land Management
Dinosaur

Fearsome tyrannosaurs were social animals, study shows

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Over approximately 2.5 million years, North America likely hosted 2.5 billion Tyrannosaurus rexes, a minuscule proportion of which have been dug up and studied by paleontologists, according to a UC Berkeley study. (Image by Julius Csotonyi, courtesy of Science magazine)
Dinosaur

How many T. rexes were there? Billions

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The world's smallest stegosaur footprint (less than 6 cm long), Xingjiang, China. Photo credit - Lida Xing.
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Tiny cat-sized stegosaur leaves its mark

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Skeletons of four tyrannosaurid specimens tested in the study. Clockwise from above left: adult Tyrannosaurus rex “Sue” (FMNH PR 2081) (Field Museum of Natural History, Chicago, IL; photo by the Field Museum), juvenile Tyrannosaurus rex “Jane” (BMRP 2002.4.1) (Burpee Museum of Natural History; photo by A. Rowe), adult Tarbosaurus bataar (Dinosaurium exhibition, Prague, Czech Republic; photo by R. Holiš) and Raptorex kriegsteini skeletal reconstruction (LH PV18) (Long Hao Institute of Geology and Paleontology, Hohhot, Inner Mongolia, China; photo by P. Sereno). Credit: Listed in caption. Final image by Andre Rowe
Dinosaur

Younger Tyrannosaurus Rex bites were less ferocious than their adult counterparts

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The asteroid impact led to the extinction of 75% of life, including all non-avian dinosaurs. Credit: Willgard Krause/Pixabay.
Dinosaur

Asteroid dust found in crater closes case of dinosaur extinction

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Comet
Dinosaur

The comet that killed the dinosaurs

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Life reconstruction of a Spinosaurus wading in the water and fishing. Credit: Robert Nicholls ©Nicholls2020
Dinosaur

New light shed on behavior of giant carnivorous dinosaur Spinosaurus

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Researcher overlooking one of the two field sites for the study, the Frenchman Valley in Chambery Coulee Saskatchewan in July 2017. Credit: McGill University
Dinosaur

When dinosaurs disappeared, forests thrived

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Ubirajara jubatus is named after a Tupi Indian name for 'lord of the spear', in reference to the creature's stiffened, elongate integumentary structures, and jubatus from the Latin meaning 'maned' or 'crested'. Image must be credited Credit: Artwork © Bob Nicholls / Paleocreations.com 2020
Dinosaur

New dinosaur showed descendants how to dress to impress

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Braincase and endocast of Thecodontosaurus antiquus. From CT scans of the braincase fossil, 3-D models of the braincase and the endocast were generated and studied. Credit: Created by Antonio Ballell with BioRender, Thecodontosaurus silhouette from PhyloPic.org.
Dinosaur

Research reveals unexpected insights into early dinosaur’s brain, eating habits and...

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A partial skeleton of Lagerpeton (hips, leg, and vertebrae) from ~235 million years from Argentina. Further examination of this specimen helped tie features of lagerpetids to pterosaurs. Photo courtesy of Sterling Nesbitt. Credit: Virginia Tech
Dinosaur

Paleontologists find pterosaur precursors that fill a gap in early evolutionary...

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Remnants of feather sheaths on the wings of the fossil bird Archaeopteryx, shows the earliest evidence of a complex moulting strategy. The white arrows indicate the feather sheaths. Scale bar is 1 cm. Credit: Kaye et al. 2020.
Dinosaur

Archaeopteryx fossil provides insights into the origins of flight

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Illustration of the Jurassic thyreophoran Scelidosaurus harrisonii, Jack Mayer Wood, CC BY-SA 4.0, via Wikimedia Commons
Dinosaur

Only dinosaurs found in ireland described for the first time

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Pterosaurs with these types of beaks are better known at the time period from North Africa, so it would be reasonable to assume a likeness to the North African Alanqa. Credit: Attributed to Davide Bonadonna
Dinosaur

Fossil shark turns into mystery pterosaur

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Titanosaurs were common at the time of the asteroid hit at the end of the Cretaceous 66 million years ago. (Credit: AlienCat)
Dinosaur

New analysis refutes claim that dinosaurs were in decline before asteroid...

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