New mosasaur genus discovered


A skeletal mount of the mosasaur Gnathomortis stadtmani at BYU’s Eyring Science Center. Image credit: BYU

From Utah State University in the USA:

Jaws of death: Paleontologist renames giant, prehistoric marine lizard

September 23, 2020

Summary: Paleontologists describe a new genus of mosasaur, Gnathomortis stadtmani, a marine lizard that roamed the oceans of North America toward the end of the Age of Dinosaurs.

Some 92 to 66 million years ago, as the Age of Dinosaurs waned, giant marine lizards called mosasaurs roamed an ocean that covered North America from Utah to Missouri and Texas to the Yukon. The air-breathing predators were streamlined swimmers that devoured almost everything in their path, including fish, turtles, clams and even smaller mosasaurs.

Coloradoan Gary Thompson discovered mosasaur bones near the Delta County town of Cedaredge in 1975, which the teen reported to his high school science teacher. The specimens made their way to Utah’s Brigham Young University, where, in 1999, the creature that left the fossils was named Prognathodon stadtmani.

“I first learned of this discovery while doing background research for my Ph.D.,” says newly arrived Utah State University Eastern paleontologist Joshua Lively, who recently took the reins as curator of the Price campus’ Prehistoric Museum. “Ultimately, parts of this fossil, which were prepared since the original description in 1999, were important enough to become a chapter in my 2019 doctoral dissertation.”

Upon detailed research of the mosasaur’s skeleton and a phylogenetic analysis, Lively determined the BYU specimen is not closely related to other species of the genus Prognathodon and needed to be renamed. He reclassified the mosasaur as Gnathomortis stadtmani and reports his findings in the most recent issue of the Journal of Vertebrate Paleontology.

His research was funded by the Geological Society of America, the Evolving Earth Foundation, the Texas Academy of Science and the Jackson School of Geosciences at The University of Texas at Austin.

“The new name is derived from Greek and Latin words for ‘jaws of death,'” Lively says. “It was inspired by the incredibly large jaws of this specimen, which measure four feet (1.2 meters) in length.”

An interesting feature of Gnathomortis’ mandibles, he says, is a large depression on their outer surface, similar to that seen in modern lizards, such as the Collared Lizard. The feature is indicative of large jaw muscles that equipped the marine reptile with a formidable biteforce.

“What sets this animal apart from other mosasaurs are features of the quadrate — a bone in the jaw joint that also forms a portion of the ear canal,” says Lively, who returned to the fossil’s Colorado discovery site and determined the age interval of rock, in which the specimen was preserved.

“In Gnathomortis, this bone exhibits a suite of characteristics that are transitional from earlier mosasaurs, like Clidastes, and later mosasaurs, like Prognathodon. We now know Gnathomortis swam in the seas of Colorado between 79 and 81 million years ago, or at least 3.5 million years before any species of Prognathodon.”

He says fossil enthusiasts can view Gnathomortis’ big bite at the BYU Museum of Paleontology in Provo, Utah, and see a cast of the skull at the Pioneer Town Museum in Cedaredge, Colorado. Reconstructions of the full skeleton are on display at the John Wesley Powell River History Museum in Green River, Utah, and in BYU’s Eyring Science Center.

“I’m excited to share this story, which represents years of effort by many citizen scientists and scholars, as I kick off my new position at USU Eastern’s Prehistoric Museum,” Lively says. “It’s a reminder of the power of curiosity and exploration by people of all ages and backgrounds.”

Bezos’ Amazon sells bleach as coronavirus ‘medicine’


This 30 April 2020 video from Canada says about itself:

Amazon workers slam warehouse conditions

Workers for online retail giant Amazon say the company is not protecting staff from the spread of the coronavirus. Five cases of COVID-19 have been reported at the company’s facility north of Calgary.

From daily The Guardian in Britain:

Industrial bleach is being sold on Amazon through its product pages which consumers are buying under the mistaken belief that it is a “miracle cure” for Covid-19, despite health warnings from the US Food and Drug Administration that drinking the fluid can kill.

The chlorine dioxide solutions are being sold on the Amazon platform under the brand name CD Kit and NatriChlor. …

In comments from Amazon customers under the review section of the pages … users discuss how many drops of bleach they are imbibing and explain they are drinking the chemical which they call MMS to “disinfect ourselves”, a phrase that echoes Donald Trump’s controversial remarks in April that injections of disinfectant could cure Covid-19.

Former NSA chief Keith Alexander has joined Amazon’s board of directors. Alexander was the public face of US surveillance during the Snowden leaks: here.

A march on Amazon CEO Jeff Bezos’s Beverly Hills mansion is planned today by activist groups, who hope to draw attention to the e-commerce giant’s business practices and working conditions: here.

Many birds at Panama feeder


This video says about itself:

Blue-gray Tanagers And A Rufous Motmot Enjoy The Panama Fruit Feeder Buffet – Sept. 16, 2020

A pair of Blue-gray Tanagers visit to fill up on some banana and are then startled off by the sudden arrival of a much larger visitor, the Rufous Motmot. Enjoy this colorful scene of these drastically different tropical birds.