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New Sauropod Dinosaur Discovered in Wyoming: Ardetosaurus viator | Sci.News

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New Sauropod Dinosaur Discovered in Wyoming: Ardetosaurus viator | Sci.News


Paleontologists have identified a new genus and species of sauropod dinosaur from a semi-articulated specimen found in the 1990s in northern Wyoming, the United States.

Life reconstruction of Ardetosaurus viator. Image credit: Ole Zant.

The newly-described species roamed Earth during the Late Jurassic epoch, some 150 million years ago.

Dubbed Ardetosaurus viator, this dinosaur was a type of diplodocid, a family of sauropod dinosaurs that includes some of the longest creatures ever to walk the planet.

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“Sauropods are among the best studied dinosaurs and include the largest terrestrial vertebrates throughout most of the Mesozoic,” said Tom van der Linden of the Oertijdmuseum and his colleagues.

“They are best recognized by their long necks and long tails, and their success can be attributed to their extreme size, an intricate bird-like air sac system, as well as their unique feeding and digestive strategies and oviparous reproduction.”

“Sauropod remains have been found on every continent, including Antarctica.”

“One of the most recognizable sauropod families is Diplodocidae, erected in 1884, and currently defined as ‘all diplodocids closer to Diplodocus than to Dicraeosaurus’.”

“These sauropods are generally characterized by their extremely long necks and even longer tails.”

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“Diplodocid paleontology is a vibrant field of study, with many recent contributions on morphology, histology, biomechanics, pathologies, and ecology.”

“Diplodocids are known from North and South America, Europe, and Africa, and have a temporal range from the Oxfordian to possibly the early Valanginian (161 to 135 million years ago).”

“They became highly abundant and taxonomically diverse in the Upper Jurassic Morrison Formation of the western United States during the Kimmeridgian and Tithonian (155 to 145 million years ago).”

The remains of Ardetosaurus viator was excavated in 1993 from the Howe-Stephens Quarry in the Morrison Formation.

Ardetosaurus viator is the first skeletally mature sauropod specimen described from the Howe-Stephens Quarry,” the paleontologists said.

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“This specimen sheds light on the variability of morphological features in diplodocine sauropods such as laminar capture in the cervico-dorsal transition and laminar transitions in caudal vertebrae,” they added.

“Additionally, the specimen preserves a relatively rare first chevron with a peculiar morphology, which in comparison with other sauropods and other non-avian dinosaurs, highlights the need to further investigate the possible recognition of sexual dimorphism in sauropod dinosaurs through micromorphological characteristics in chevrons.”

The team’s paper was published this month in the journal Palaeontologia Electronica.

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Tom T.P. van der Linden et al. 2024. A new diplodocine sauropod from the Morrison Formation, Wyoming, USA. Palaeontologia Electronica 27 (3): a50; doi: 10.26879/1380

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Wyoming power plant booming with suspected UFO, drone sightings — but still no answers after over a year

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Wyoming power plant booming with suspected UFO, drone sightings — but still no answers after over a year


Fleets of drones and suspected UFOs have been spotted hovering over a Wyoming power plant for more than a year, while a local sheriff’s department is still searching for clues.

Officials with the Sweetwater County Sheriff’s Office recorded scores of beaming, drone-like objects circling around the Red Desert and Jim Bridger Power Plant in Rock Springs over the last 13 months — though they didn’t specify how many, the Cowboy State Daily reported.

Multiple drone or suspected UFO sightings have been reported at the Jim Bridger Power Plant in Rock Springs, Wyoming. UCG/Universal Images Group via Getty Images

Sheriff John Grossnickle was one of the first to witness the spectacles, and last saw the mind-boggling formation on Dec. 12, his spokesperson Jason Mower told the outlet.

The fleets periodically congregate over the power plant in coordinated formations, Mower claimed.

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The sheriff’s office hasn’t been able to recover any of the suspected UFOs, telling the outlet they’re too high to shoot down.

The law enforcement outpost’s exhaustive efforts to get to the truth haven’t yielded any results, even after Grossnickle enlisted help from Wyoming US Rep. Harriet Hageman — who Mower claimed saw the formation during a trip to the power plant.

Hageman could not be reached for comment.

A spokesperson for the Sweetwater County Sheriff’s Office said that the drones typically hover too high up for them to shoot down. X/@JerzyBets

“We’ve worked with everybody. We’ve done everything we can to figure out what they are, and nobody wants to give us any answers,” Mower said, according to the outlet.

At first, spooked locals bombarded the sheriff’s office with calls about the confounding aerial formations. Now, though, Mower said that people seem to have accepted it as “the new normal.”

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Mower noted that the objects, which he interchangeably referred to as “drones” and “unidentified flying objects,” have yet to pose a danger to the public or cause any damage to the power plant itself.

John Grossnickle, the sheriff of Sweetwater County, claimed he saw the objects. LinkedIn/John Grossnickle

“It’s like this phenomenon that continues to happen, but it’s not causing any, you know, issues that we have to deal with — other than the presence of them,” he told the outlet.

The spokesperson promised the sheriff’s office would “certainly act accordingly” if the drones pose an imminent harm.

Meanwhile, Niobrara County Sheriff Randy Starkey told the Cowboy State Daily that residents of his community also reported mystery drone sightings over Lance Creek — more than 300 miles from the Jim Bridger Power Plant — starting in late October 2024 and ending in early March.

Another sheriff’s office one county over also reported similar sightings over a creek. phonlamaiphoto – stock.adobe.com

Starkey said he’s “just glad they’re gone,” according to the outlet.

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Drone sightings captured the nation’s attention last year when they were causing hysteria in sightings over New Jersey.

Just days into his second term, President Trump had to clarify that the drones were authorized by the Federal Aviation Administration to quell worries that they posed a national security threat.

Still, the public wasn’t convinced, but the mystery slowly faded as the sightings plummeted.

In October, though, an anonymous source with an unnamed military contractor told The Post that their company was responsible for the hysteria.

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Barrasso bill aims to improve rescue response in national parks

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Barrasso bill aims to improve rescue response in national parks


Much of Wyoming outside of Yellowstone and Grand Teton also struggles with emergency response time.

By Katie Klingsporn, WyoFile

Wyoming’s U.S. Sen. John Barrasso is pushing legislation to upgrade emergency communications in national parks — a step he says would improve responses in far-flung areas of parks like Yellowstone and Grand Teton national parks. 

“This bill improves the speed and accuracy of emergency responders in locating and assisting callers in need of emergency assistance,” Barrasso told members of the National Parks Subcommittee last week during a hearing on the bill. “These moments make a difference between visitors being able to receive quick care and continue their trip or facing more serious medical complications.”

The legislation directs the U.S. Department of the Interior to develop a plan to upgrade National Park Service 911 call centers with next-generation 911 technology. 

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Among other things, these upgrades would enable them to receive text messages, images and videos in addition to phone calls, enhancing their ability to respond to emergencies or rescues in the parks. 

A rescue litter is delivered to Jenny Lake Climbing Rangers. A new report compiled by ranger George Montopoli and his daughter Michelle Montopoli show trends in search and rescue incidents in Grand Teton National Park. Photo: Courtesy of Grand Teton National Park

Each year, rangers and emergency services respond to a wide range of calls — from lost hikers to car accidents and grizzly maulings — in the Wyoming parks’ combined 2.5 million acres. 

Outside park boundaries, the state’s emergency service providers also face steep challenges, namely achieving financial viability. Many patients, meantime, encounter a lack of uniformity and longer 911 response times in the state’s so-called frontier areas. 

Improving the availability of ground ambulance services to respond to 911 calls is a major priority in Wyoming’s recent application for federal Rural Health Transformation Project funds. 

Barrasso’s office did not respond to a WyoFile request for comment on the state’s broader EMS challenges by publication time. 

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The bill from the prominent Wyoming Republican, who serves as Senate Majority Whip, joined a slate of federal proposals the subcommittee considered last week. With other bills related to the official name of North America’s highest mountain, an extra park fee charged to international visitors, the health of a wild horse herd and the use of off-highway vehicles in Capitol Reef National Park, Barrasso’s “Making Parks Safer Act” was among the least controversial. 

What’s in it

Barrasso brought the bipartisan act along with Sens. Angus King (I-Maine), Cindy Hyde-Smith (R-Miss.) and John Hickenlooper (D-Colo.). 

The bill would equip national park 911 call centers with technological upgrades that would improve and streamline responses, Barrasso said. He noted that hundreds of millions of visitors stream into America’s national parks annually. That includes more than 8 million recreation visits to Wyoming’s national parks in 2024. 

“Folks travel from across the world to enjoy the great American outdoors, and for many families, these memories last a lifetime,” he testified. “This is a bipartisan bill that ensures visitors who may need assistance can be reached in an accurate and timely manner.”

President Donald Trump, seated next to U.S. Sen. John Barrasso, R-Wyoming, meets with members of Congress on Feb. 14, 2018, in the Cabinet Room at the White House in Washington, D.C. Photo: White House

The Park Service supports Barrasso’s bill, Mike Caldwell, the agency’s associate director of park planning, facilities and lands, said during the hearing. It’s among several proposals that are “consistent with executive order 14314, ‘Making America Beautiful Again by Improving our National Parks,’” Caldwell said. 

“These improvements are largely invisible to visitors, so they strengthen the emergency response without deterring the park’s natural beauty or history,” he said.

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Other park issues 

National parks have been a topic of contention since President Donald Trump included them in his DOGE efforts in early 2025. Since then, efforts to sell off federal land and strip park materials of historical information that casts a negative light on the country, along with a 43-day government shutdown, have continued to fuel debate over the proper management of America’s parks.  

Several of these changes and issues came up during the recent National Parks Subcommittee hearing. 

A person walks the southwest ridge of Eagle Peak in Yellowstone National Park during the 2024 search for missing hiker Austin King. Photo: Jacob W. Frank // NPS

Among them was the recent announcement that resident fee-free dates will change in 2026. Martin Luther King Day and Juneteenth will no longer be included in those days, but visitors won’t have to pay fees on new dates: Flag Day on June 14, which is Trump’s birthday and Oct. 27, Theodore Roosevelt’s birthday. 

Conservation organizations and others decried those changes as regressive. 

At the hearing, Sen. Martin Heinrich (D-NM), assured the room that “when this president is in the past, Martin Luther King Jr. Day and Juneteenth will not only have fee-free national park admission, they will occupy, again, incredible places of pride in our nation’s history.”

Improvements such as the new fee structure “put American families first,” according to the Department of the Interior. “These policies ensure that U.S. taxpayers, who already support the National Park System, continue to enjoy affordable access, while international visitors contribute their fair share to maintaining and improving our parks for future generations,” Secretary of the Interior Doug Burgum said in an announcement.

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WyoFile is an independent nonprofit news organization focused on Wyoming people, places and policy.



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Evacuations spread from fires in South Dakota, Wyoming due to strong winds from coast-to-coast storm

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Evacuations spread from fires in South Dakota, Wyoming due to strong winds from coast-to-coast storm


Large, fast-moving fires are causing evacuations in South Dakota and Wyoming due to the impacts of a coast-to-coast storm.

The FOX Forecast Center said winds have been gusting up to 70 mph in the Pennington County, South Dakota area, which has caused the wildfire to spread rapidly.

COAST-TO-COAST STORM CAUSES TRAVEL ISSUES DUE TO HURRICANE-FORCE WINDS, HEAVY RAIN ACROSS NORTHWEST

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The blaze, known as the Greyhound Fire, is approximately 200 acres in size. The fire is burning two to three miles south of Keystone and is moving east, according to the Pennington County Sheriff’s Office.

Highway 40 and Playhouse Road are closed as crews work to contain the fire.

People living along the highway between Playhouse Road and Rushmore Ranch Road have been evacuated, officials said.

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TWO KIDS WAITING FOR THE BUS CRITICALLY INJURED DUE TO STRONG WINDS IN IDAHO

Crews are asking anyone in an evacuation zone to leave the area. Officials are advising people in the area to check the Pennington County Public Safety Hub.

People in the Winchester Hills area of Cheyenne, Wyoming, have also been evacuated due to a grass fire.

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The FOX Forecast Center said winds are gusting up to 75 mph in the area.

The National Weather Service has issued a Fire Warning and says there is a shelter at South High School for evacuated residents.

Check for updates on this developing story.



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