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Categories: Geoscience: Landslides, Paleontology: Dinosaurs

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Geoscience: Landslides
Published

Flood risk for Iowa farmland      (via sciencedaily.com) 

Researchers have created a detailed set of maps examining the flood risk for all farmland in Iowa. The maps show 450,000 acres of crops in areas with a 50% chance of flooding, and losses from flooding averaging $230 million annually.

Geoscience: Landslides
Published

Drenching rains to pose greater threat to fire-damaged areas in West      (via sciencedaily.com) 

The western United States this century is facing a greatly heightened risk of heavy rains inundating areas recently scarred by wildfires, new research warns. Such events can cause significant destruction, including debris flows, mudslides, and flash floods, because the denuded landscape cannot easily contain the drenching moisture.

Paleontology: Dinosaurs
Published

T. rex's short arms may have lowered risk of bites during feeding frenzies      (via sciencedaily.com) 

Extinct for 66 million years, T. rex still inspires speculation about its anatomy, behavior and fierce physique. One conundrum: its peculiarly short forelimbs, which have relatively limited mobility. While scientists have suggested explanations, a paleontologist puts the proposals to the test and finds them wanting. He hypothesizes that the arms reduced in size to limit damage, possibly fatal, when a pack of T. rexes descended on a carcass with their bone-crunching teeth.

Paleontology: Dinosaurs Paleontology: Early Mammals and Birds
Published

Mammals put brawn before brains to survive post-dinosaur world      (via sciencedaily.com) 

Prehistoric mammals bulked up, rather than develop bigger brains, to boost their survival chances once dinosaurs had become extinct, research suggests.

Paleontology: Dinosaurs
Published

Dense bones allowed Spinosaurus to hunt underwater      (via sciencedaily.com) 

Spinosaurus is the largest predatory dinosaur known -- over two metres longer than the longest Tyrannosaurus rex -- but the way it hunted has been a subject of debate for decades. In a new paper, palaeontologists have taken a different approach to decipher the lifestyle of long-extinct creatures: examining the density of their bones.

Paleontology: Dinosaurs
Published

Soil erosion and wildfire another nail in coffin for Triassic era      (via sciencedaily.com) 

New research has revealed that soil erosion and wildfires contributed to a mass extinction event 201 million years ago that ended the Triassic era and paved the way for the rise of dinosaurs in the Jurassic period.

Paleontology: Dinosaurs
Published

Newly identified softshell turtle lived alongside T. rex and Triceratops      (via sciencedaily.com) 

Scientists describe the find of a new softshell turtle from the end of the Cretaceous Period.

Paleontology: Dinosaurs
Published

New species of stegosaur is oldest discovered in Asia, and possibly the world      (via sciencedaily.com) 

Relatively small, but fearsome-looking stegosaur measured about 2.8 meters (9 feet) from nose to tail -- but scientists can't tell whether the remains are those of an adult or juvenile.

Paleontology: Dinosaurs
Published

Physics race pits Usain Bolt against Jurassic Park dinosaur      (via sciencedaily.com) 

A physics professor has developed an innovative activity that poses the question: Is Usain Bolt faster than a 900-pound dinosaur?

Paleontology: Dinosaurs
Published

Researchers reconstruct ancient fish lizard      (via sciencedaily.com) 

Scientists have mapped 300 years of research on the prehistoric marine reptiles known as ichthyosaurs. Using a uniquely well-preserved fossil, the team has also created the scientifically most up-to-date reconstruction of an ichthyosaur currently available.

Paleontology: Dinosaurs
Published

Tyrannosaurus remains hint at three possible distinct species      (via sciencedaily.com) 

A new analysis of Tyrannosaurus skeletal remains reveals physical differences in the femur, other bones and dental structures across specimens that could suggest Tyrannosaurus rex specimens need to be re-categorized into three distinct groups or species, reports a new study.

Geoscience: Landslides
Published

Overlooked channels influence water flow and flooding along Gulf Coast      (via sciencedaily.com) 

An unnoticed network of channels is cutting across the coastal plain landscape along the Gulf Coast and influencing how water flows, according to new research that could help predict flooding from major storms in the future.

Paleontology: Dinosaurs
Published

The last day of the dinosaurs      (via sciencedaily.com) 

The asteroid which killed nearly all of the dinosaurs struck Earth during springtime. This conclusion was drawn by an international team of researchers after having examined thin sections, high-resolution synchrotron X-ray scans, and carbon isotope records of the bones of fishes that died less than 60 minutes after the asteroid impacted.

Geoscience: Landslides
Published

US flood damage risk is underestimated      (via sciencedaily.com) 

Researchers found a high probability of flood damage -- including monetary damage, human injury and loss of life -- for more than a million square miles of land across the United States across a 14-year period.

Paleontology: Dinosaurs Paleontology: Early Mammals and Birds
Published

New fossil birds discovered near China’s Great Wall – one had a movable, sensitive 'chin'      (via sciencedaily.com) 

Two new species of fossil birds that lived alongside the dinosaurs have ben discovered near the Great Wall of China. One of the new species had a sensitive, movable bony appendage at the tip of its lower jaw that it might have used to find food.

Geoscience: Landslides
Published

U.S. coastline to see up to a foot of sea level rise by 2050      (via sciencedaily.com) 

The United States is expected to experience as much sea level rise by the year 2050 as it witnessed in the previous hundred years. That's according to a NOAA-led report updating sea level rise decision-support information for the U.S. released in partnership with half a dozen other U.S.federal agencies.

Paleontology: Dinosaurs Paleontology: Early Mammals and Birds
Published

First evidence indicating dinosaur respiratory infection      (via sciencedaily.com) 

Scientists have discovered the first evidence of a unique respiratory infection in the fossilized remains of a dinosaur that lived nearly 150 million years ago. Researchers examined the remains of an immature diplodocid -- a long-necked herbivorous sauropod dinosaur, like 'Brontosaurus' - dating back to the Late Jurassic Period of the Mesozoic Era. The dinosaur nicknamed 'Dolly,' discovered in southwest Montana, had evidence of an infection in the area of its neck vertebrae.

Geoscience: Landslides
Published

January 2020 Puerto Rico earthquake provides valuable data for ground failure models      (via sciencedaily.com) 

Field surveys conducted in the days after the 7 January 2020 Puerto Rico earthquake documented more than 300 landslides and severe liquefaction in southern coastal regions, according to a new study.

Paleontology: Dinosaurs
Published

Large new titanosaurian dinosaur from the Pyrenees      (via sciencedaily.com) 

Researchers have described the new species of titanosaur dinosaur Abditosaurus kuehnei from the remains excavated at the Orcau-1 site, in the southern Pyrenees (Catalonia, Spain). The semiarticulated 70.5-million-year-old skeleton is the most complete specimen of this herbivorous group of dinosaurs discovered so far in Europe.

Geoscience: Landslides
Published

Pioneering research forecasts climate change set to send costs of flooding soaring      (via sciencedaily.com) 

Climate change could result in the financial toll of flooding rising by more than a quarter in the United States by 2050 -- and disadvantaged communities will bear the biggest brunt, according to new research.