A paleontological research team in China has identified a new species of tyrannosaur. Xinhua reported that the researchers from the Zhejiang Museum of Natural History named the dinosaur "Asiatyrannus xui" in honour of the Chinese scientist Xu Xing.&nbsp;

The study, titled "The first deep-snouted tyrannosaur from Upper Cretaceous Ganzhou City of southeastern China", was published on Thursday (Jul 25). These species are distinguished from the others by their enormous bodies and deeply curved noses.&nbsp;

The study mentioned that the earliest tyrannosaurs appeared in the Middle Jurassic, around 165 million years ago. "They became the apex predators in their respective ecologies during the final 20 million years of the Cretaceous in Asia and western North America," it added.&nbsp;

Also read:&nbsp;<a href="https://www.wionews.com/science/hunga-tonga-volcano-eruption-in-2022-might-have-cooled-earth-study-745018">Hunga Tonga volcano eruption in 2022 might have cooled Earth: Study</a>&nbsp;

As quoted by Interesting Engineering, Dr Wenjie Zheng said: "Tyrannosauroids are the most distinctive, best known, and most intensively studied groups of dinosaurs, and are represented by almost 30 species."&nbsp;

The study mentioned that the new species of tyrannosaur lived approximately 72 to 66 million years ago during the Late Cretaceous period.&nbsp;

Zheng said that the fossil includes the nearly entire cranium, tail vertebrae and bones from the hind limbs. The researchers have said that this deep-snouted tyrannosaur is said to be the first ever found in Southern China.&nbsp;

Also read:&nbsp;<a href="https://www.wionews.com/science/chernobyls-miraculous-survivors-resilient-worms-thrive-amid-hazardous-radiation-744950">Chernobyl’s miraculous survivors: Resilient worms thrive amid hazardous radiation</a>&nbsp;

The skull measures 47.5 centimetres in length and the body length was approximately half that of Qianzhousaurus, which is estimated to reach around nine meters at similar growth stages.&nbsp;

The tyrannosaurs in Asia are predominantly found in northern China and Mongolia, with the exception being the long-snouted genus Qianzhousaurus from the Nanxiong Formation (Maastrichtian) in Nankang District of Ganzhou City, southeastern China, the study added.&nbsp;

(With inputs from agencies)&nbsp;

A paleontological research team in China has identified a new species of tyrannosaur. Xinhua reported that the researchers from the Zhejiang Museum of Natural History named the dinosaur "Asiatyrannus xui" in honour of the Chinese scientist Xu Xing.

A paleontological research team in China has identified a new species of tyrannosaur. Xinhua reported that the researchers from the Zhejiang Museum of Natural History named the dinosaur "Asiatyrannus xui" in honour of the Chinese scientist Xu Xing. The study, titled "The first deep-snouted tyrannosaur from Upper Cretaceous Ganzhou City of southeastern China", was published on Thursday (Jul 25). These species are distinguished from the others by their enormous bodies and deeply curved noses. The study mentioned that the earliest tyrannosaurs appeared in the Middle Jurassic, around 165 million years ago. "They became the apex predators in their respective ecologies during the final 20 million years of the Cretaceous in Asia and western North America," it added. Also read: Hunga Tonga volcano eruption in 2022 might have cooled Earth: Study As quoted by Interesting Engineering, Dr Wenjie Zheng said: "Tyrannosauroids are the most distinctive, best known, and most intensively studied groups of dinosaurs, and are represented by almost 30 species." The study mentioned that the new species of tyrannosaur lived approximately 72 to 66 million years ago during the Late Cretaceous period. Zheng said that the fossil includes the nearly entire cranium, tail vertebrae and bones from the hind limbs. The researchers have said that this deep-snouted tyrannosaur is said to be the first ever found in Southern China. Also read: Chernobyl’s miraculous survivors: Resilient worms thrive amid hazardous radiation The skull measures 47.5 centimetres in length and the body length was approximately half that of Qianzhousaurus, which is estimated to reach around nine meters at similar growth stages. The tyrannosaurs in Asia are predominantly found in northern China and Mongolia, with the exception being the long-snouted genus Qianzhousaurus from the Nanxiong Formation (Maastrichtian) in Nankang District of Ganzhou City, southeastern China, the study added. (With inputs from agencies)

Researchers discover first deep-snouted tyrannosaur in Southern China

Paleontologists may have found a new species of tyrannosaur—Tyrannosaurus mcraeensis—that could have been even larger than Tyrannosaurus rex—the dinosaur king—in size. The revelation came after experts carefully studied a partial fossilised skull initially unearthed in 1983. For decades, scientists mistakenly thought it to be T. rex skull. However, they decided to expose it to further study in 2013 after a team of palaeontologists noticed subtle yet suspicious anomalies in its shape.&nbsp;

A new study published Thursday (Jan 11) in the journal ‘Scientific Reports’ revealed that the skull dates to between 73 million and 71 million years ago. It means that T. mcraeensis was 3 to 5 million years older than T. rex.

<h2>Differences noticed between T. mcraeensis and T. rex</h2>

According to experts, the most striking difference were&nbsp;observed in the shape of the lower jaw. "The most striking difference is the shape of the lower jaw, which is more slender and curved [than T.rex]," study co-author Nick Longrich, a palaeontologist at the University of Bath in the UK, was quoted as saying by Live Science.

"It also lacks the prominent bosses or hornlets found over the top of the eyes in T. rex," he added.

Longrich further added that T. mcraeensis was found to have fewer teeth than other tyrannosaurs, “which is one of the main reasons why the researchers believe it is T. rex's closest relative because T. rex also has fewer teeth.”

<a href="https://www.google.com/url?sa=t&amp;rct=j&amp;q=&amp;esrc=s&amp;source=newssearch&amp;cd=&amp;cad=rja&amp;uact=8&amp;ved=2ahUKEwiS_5m_49eDAxVEsVYBHfcVBQoQxfQBKAB6BAgHEAE&amp;url=https%3A%2F%2Fwww.wionews.com%2Fscience%2Fscientists-discover-youngest-earth-sized-exoplanet-having-lava-hemisphere-679301&amp;usg=AOvVaw1Pn2wxV2fsXsKryqfgK2R1&amp;opi=89978449">Also read:&nbsp;`Extra hot and young` Earth-sized exoplanet with a ‘lava hemisphere’ discovered</a>

He added that the size of the skull was around the same size but “other individuals of the same species may have been even larger.”

"It's not impossible" that T. mcraeensis could have been even larger than T. rex, Longrich said. "Since we only have one individual, it's unlikely we've found the biggest individuals of the species."

<h2>T. rex’s other closest relatives</h2>

Tarbosaurus bataar and Zhuchengtyrannus magnus were previously considered T. rex's closest relatives, both believed to have roamed in China and Mongolia.&nbsp;

Watch:&nbsp;NASA James Webb Telescope captures stunning pictures of the universe

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These tyrannosaurs predate T. rex, hinting that the origin of tyrannosaurs might be in Asia. However, recent discoveries propose that Laramidia is a more probable birthplace for the tyrannosaur lineage, implying later migration to Asia. Yet, none of the theories have been confirmed by experts.

(With inputs from agencies)

Paleontologists may have found a new species of tyrannosaur—Tyrannosaurus mcraeensis—that could have been even larger than Tyrannosaurus rex—the dinosaur king—in size.

Paleontologists may have found a new species of tyrannosaur—Tyrannosaurus mcraeensis—that could have been even larger than Tyrannosaurus rex—the dinosaur king—in size. The revelation came after experts carefully studied a partial fossilised skull initially unearthed in 1983. For decades, scientists mistakenly thought it to be T. rex skull. However, they decided to expose it to further study in 2013 after a team of palaeontologists noticed subtle yet suspicious anomalies in its shape. A new study published Thursday (Jan 11) in the journal ‘Scientific Reports’ revealed that the skull dates to between 73 million and 71 million years ago. It means that T. mcraeensis was 3 to 5 million years older than T. rex. Differences noticed between T. mcraeensis and T. rex According to experts, the most striking difference were observed in the shape of the lower jaw. "The most striking difference is the shape of the lower jaw, which is more slender and curved [than T.rex]," study co-author Nick Longrich, a palaeontologist at the University of Bath in the UK, was quoted as saying by Live Science. "It also lacks the prominent bosses or hornlets found over the top of the eyes in T. rex," he added. Longrich further added that T. mcraeensis was found to have fewer teeth than other tyrannosaurs, “which is one of the main reasons why the researchers believe it is T. rex's closest relative because T. rex also has fewer teeth.” Also read: `Extra hot and young` Earth-sized exoplanet with a ‘lava hemisphere’ discovered He added that the size of the skull was around the same size but “other individuals of the same species may have been even larger.” "It's not impossible" that T. mcraeensis could have been even larger than T. rex, Longrich said. "Since we only have one individual, it's unlikely we've found the biggest individuals of the species." T. rex’s other closest relatives Tarbosaurus bataar and Zhuchengtyrannus magnus were previously considered T. rex's closest relatives, both believed to have roamed in China and Mongolia. Watch: NASA James Webb Telescope captures stunning pictures of the universe × These tyrannosaurs predate T. rex, hinting that the origin of tyrannosaurs might be in Asia. However, recent discoveries propose that Laramidia is a more probable birthplace for the tyrannosaur lineage, implying later migration to Asia. Yet, none of the theories have been confirmed by experts. (With inputs from agencies)

Dinosaur bigger and older than the T. rex once roamed the Earth, scientists find

A 75-million-year-old fossilised tyrannosaur has shed light on intriguing diet patterns of the ancient predators as they grew. The fossil had remains of two baby dinosaurs inside it, revealing that the tyrannosaur feasted on them right before it died.

The tyrannosaur was likely around 7 years old—a teenager in dinosaur years—and consumed the hind legs of the baby dinosaurs that were less than a year old.

The bird-like baby dinosaurs, called citipes, are believed to be close cousins of the tyrannosaurus rex.

The study, published in the journal Science Advances, reveals that while young tyrannosaurs preyed on small, young dinosaurs, the adults attacked and ate very large plant-eating dinosaurs, which lived in herds.

The discovery is “solid evidence that tyrannosaurs drastically changed their diet as they grew up,” Dr Darla Zelenitsky, one of the lead scientists in the study, was quoted as saying by BBC.

She said: “We now know that these teenage (tyrannosaurs) hunted small, young dinosaurs.

<a href="https://www.wionews.com/science/real-life-jurassic-world-may-exist-on-other-planets-and-humans-may-detect-them-study-660668">Also read:&nbsp;Dinosaurs might be roaming some other planet, new study finds</a>

“These smaller, immature tyrannosaurs were probably not ready to jump into a group of horned dinosaurs, where the adults weighed thousands of kilograms.”

The discovery reveals that juvenile tyrannosaurs had narrow skulls and blade-like teeth, and thus were better suited to eat small prey, while adult tyrannosaurs' large skulls and strong teeth enabled them to prey on much larger, heavier beasts.

Watch:&nbsp;New dinosaur species found in Mexico

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The fossil of the tyrannosaur was originally discovered in 2009 in Canada’s Alberta; however, it took scientists more than a decade to prepare it for study.

The initial discovery was made by the staff at Alberta’s Royal Tyrrell Museum of Palaeontology, who spotted small toe bones protruding from the rib cage.

Dr Francois Therrien, the other lead scientist in the study, was quoted by BBC as saying, “The rock within the ribcage was removed to expose what was hidden inside. And lo and behold – the complete hind legs of two baby dinosaurs, both under a year old.”

(With inputs from agencies)

A 75-million-year-old fossilised tyrannosaur has shed light on intriguing diet patterns of the ancient predators as they grew. The fossil had remains of two baby dinosaurs inside it, revealing that the tyrannosaur feasted on them right before it died.

A 75-million-year-old fossilised tyrannosaur has shed light on intriguing diet patterns of the ancient predators as they grew. The fossil had remains of two baby dinosaurs inside it, revealing that the tyrannosaur feasted on them right before it died. The tyrannosaur was likely around 7 years old—a teenager in dinosaur years—and consumed the hind legs of the baby dinosaurs that were less than a year old. The bird-like baby dinosaurs, called citipes, are believed to be close cousins of the tyrannosaurus rex. The study, published in the journal Science Advances, reveals that while young tyrannosaurs preyed on small, young dinosaurs, the adults attacked and ate very large plant-eating dinosaurs, which lived in herds. The discovery is “solid evidence that tyrannosaurs drastically changed their diet as they grew up,” Dr Darla Zelenitsky, one of the lead scientists in the study, was quoted as saying by BBC. She said: “We now know that these teenage (tyrannosaurs) hunted small, young dinosaurs. Also read: Dinosaurs might be roaming some other planet, new study finds “These smaller, immature tyrannosaurs were probably not ready to jump into a group of horned dinosaurs, where the adults weighed thousands of kilograms.” The discovery reveals that juvenile tyrannosaurs had narrow skulls and blade-like teeth, and thus were better suited to eat small prey, while adult tyrannosaurs' large skulls and strong teeth enabled them to prey on much larger, heavier beasts. Watch: New dinosaur species found in Mexico × The fossil of the tyrannosaur was originally discovered in 2009 in Canada’s Alberta; however, it took scientists more than a decade to prepare it for study. The initial discovery was made by the staff at Alberta’s Royal Tyrrell Museum of Palaeontology, who spotted small toe bones protruding from the rib cage. Dr Francois Therrien, the other lead scientist in the study, was quoted by BBC as saying, “The rock within the ribcage was removed to expose what was hidden inside. And lo and behold – the complete hind legs of two baby dinosaurs, both under a year old.” (With inputs from agencies)

As a teenager, the tyrannosaur only ate baby dinosaurs, and a fossil is proof

Ferocious tyrannosaur dinosaurs may not have been solitary predators as long envisioned, but more like social carnivores such as wolves, as per a recent study unveiled.

Paleontologists developed the theory while studying a mass tyrannosaur death site found seven years ago in the Grand Staircase-Escalante National Monument in southern Utah, one of two monuments that the Biden administration is considering restoring to their full size after former President Donald Trump shrunk them.

Also read|&nbsp;<a href="https://www.wionews.com/science/thats-a-lot-of-teeth-researchers-discover-25-billion-tyrannosaurus-rex-377881" hreflang="en">‘That’s a lot of teeth’: Researchers discover 2.5 billion Tyrannosaurus rex</a>

Using geochemical analysis of the bones and rock, a team of researchers with the University of Arkansas determined that the dinosaurs died and were buried in the same place and were not the result of fossils washing in from multiple areas.

According to&nbsp;Kristi Curry Rogers, a biology professor at Macalester College, the new Utah site is the third mass tyrannosaur gravesite that’s been discovered in North America,&nbsp;bolstering a theory first developed 20 years ago that they lived in packs. However, more research needs to be done to make that argument.

“It is a little tougher to be so sure that these data mean that these tyrannosaurs lived together in the good times,” Rogers said. “It’s possible that these animals may have lived in the same vicinity as one another without traveling together in a social group, and just came together around dwindling resources as times got tougher.”

In 2014, Bureau of Land Management paleontologist Alan Titus discovered the site, which was later named the Rainbows and Unicorns quarry because of the vast array of fossils contained inside. Excavation has been ongoing since the site’s discovery because of the size of the area and volume of bones.

“I consider this a once-in-a-lifetime discovery for myself,” Titus told reporters during a virtual news conference. “I probably won’t find another site this exciting and scientifically significant during my career.”

The social tyrannosaurs theory began over 20 years ago when more than a dozen tyrannosaurs were found at a site in Alberta, Canada. Another mass death site in Montana again raised the possibility of social tyrannosaurs. Many scientists questioned the theory, arguing that the dinosaurs didn’t have the brainpower to engage in sophisticated social interaction, Titus said.

“Going that next step to understand behavior and how animals behave requires really amazing evidence,” Joseph Sertich, curator of dinosaurs at the Denver Museum of Nature &amp; Science, said at the news conference. “I think that this site, the spectacular collection of tyrannosaurs but also the other assembled pieces of evidence ... pushes us to the point where we can show some evidence for behavior.”

In addition to the tyrannosaurs, researchers have also found seven species of turtles, multiple fish and ray species, two other kinds of dinosaurs and a nearly complete skeleton of a juvenile Deinosuchus alligator. These other animals do not appear to have all died together.

Paleontology groups have been among those pushing the federal government to restore the Bears Ears National Monument and Grand Staircase-Escalante to their original sizes to protect the region’s rich paleontological and archaeological record.

Interior Secretary Deb Haaland visited southern Utah earlier this month as she prepared to submit recommendations on whether to reverse Trump’s decision to downsize the monuments. Titus said he showed Haaland some of the fossils at his lab during her visit and said she “appreciated getting to see the material.”

“The (Bureau of Land Management) is protecting these fossils as national treasures.” Titus said. “They’re part of the story of how North America came to be and how ultimately we came to be.”

(With input from agencies)

Ferocious tyrannosaur dinosaurs may not have been solitary predators as long envisioned, but more like social carnivores such as wolves, as per a recent study unveiled.

Ferocious tyrannosaur dinosaurs may not have been solitary predators as long envisioned, but more like social carnivores such as wolves, as per a recent study unveiled. Paleontologists developed the theory while studying a mass tyrannosaur death site found seven years ago in the Grand Staircase-Escalante National Monument in southern Utah, one of two monuments that the Biden administration is considering restoring to their full size after former President Donald Trump shrunk them. Also read| ‘That’s a lot of teeth’: Researchers discover 2.5 billion Tyrannosaurus rex Using geochemical analysis of the bones and rock, a team of researchers with the University of Arkansas determined that the dinosaurs died and were buried in the same place and were not the result of fossils washing in from multiple areas. According to Kristi Curry Rogers, a biology professor at Macalester College, the new Utah site is the third mass tyrannosaur gravesite that’s been discovered in North America, bolstering a theory first developed 20 years ago that they lived in packs. However, more research needs to be done to make that argument. “It is a little tougher to be so sure that these data mean that these tyrannosaurs lived together in the good times,” Rogers said. “It’s possible that these animals may have lived in the same vicinity as one another without traveling together in a social group, and just came together around dwindling resources as times got tougher.” In 2014, Bureau of Land Management paleontologist Alan Titus discovered the site, which was later named the Rainbows and Unicorns quarry because of the vast array of fossils contained inside. Excavation has been ongoing since the site’s discovery because of the size of the area and volume of bones. “I consider this a once-in-a-lifetime discovery for myself,” Titus told reporters during a virtual news conference. “I probably won’t find another site this exciting and scientifically significant during my career.” The social tyrannosaurs theory began over 20 years ago when more than a dozen tyrannosaurs were found at a site in Alberta, Canada. Another mass death site in Montana again raised the possibility of social tyrannosaurs. Many scientists questioned the theory, arguing that the dinosaurs didn’t have the brainpower to engage in sophisticated social interaction, Titus said. “Going that next step to understand behavior and how animals behave requires really amazing evidence,” Joseph Sertich, curator of dinosaurs at the Denver Museum of Nature & Science, said at the news conference. “I think that this site, the spectacular collection of tyrannosaurs but also the other assembled pieces of evidence ... pushes us to the point where we can show some evidence for behavior.” In addition to the tyrannosaurs, researchers have also found seven species of turtles, multiple fish and ray species, two other kinds of dinosaurs and a nearly complete skeleton of a juvenile Deinosuchus alligator. These other animals do not appear to have all died together. Paleontology groups have been among those pushing the federal government to restore the Bears Ears National Monument and Grand Staircase-Escalante to their original sizes to protect the region’s rich paleontological and archaeological record. Interior Secretary Deb Haaland visited southern Utah earlier this month as she prepared to submit recommendations on whether to reverse Trump’s decision to downsize the monuments. Titus said he showed Haaland some of the fossils at his lab during her visit and said she “appreciated getting to see the material.” “The (Bureau of Land Management) is protecting these fossils as national treasures.” Titus said. “They’re part of the story of how North America came to be and how ultimately we came to be.” (With input from agencies)

Scientists say ferocious Tyrannosaurs may have hunted in packs like wolves

Paleontologists from the Argentine Museum of Natural Sciences said on Monday (May 18) they found the 70-million-year-old remains of a megaraptor, making it one of the last carnivorous dinosaurs to inhabit the earth.

Fossil of one of the last megaraptors on the planet found in Argentina

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