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Yesterday β€” 3 December 2024Main stream

New dinosaur species similar to T. rex found in Asia: 'One of the most significant' discoveries

25 August 2024 at 07:00

A new carnivore has come to town β€” 165 million years ago at least.Β 

The Alpkarakush kyrgyzicus, a new species and genus of theropod dinosaur, has been discovered in Kyrgyzstan by an expedition team of German and Kyrgyz researchers, according to the Bavarian State Natural History Collections in Germany.Β 

Alpkarakush kyrgyzicus is the first theropod dinosaur found in Kyrgyzstan and the "find is one of the most significant in Central Asia," the institution said in a news release.Β 

Before the new species' discovery, no large Jurassic predatory dinosaurs had been known to live in the area around Kyrgyzstan between Central Europe and Eastern Asia, according to the institution.Β 

DINOSAUR-KILLING ASTEROID LIKELY CAME FROM BEYOND JUPITER, STUDY FINDS

The first fossils of Alpkarakush kyrgyzicus were uncovered in 2006 by Kyrgyz paleontologist Aizek Bakirov in a mountainous desert area of the country near the city of Tashkumyr.

Between 2006 and last year, more fossils, including skull bones, pelvic vertebrae and forearms, were found.Β 

The dinosaur is believed to be around 30 feet long.

"Particularly impressive is its extremely protruding β€˜eyebrow’ on the so-called postorbital bone, a skull bone behind the eye-opening, which indicates the presence of a horn at this point," the institution said. "Other unique features are found on the dorsal vertebrae and the femur."

Alpkarakush kyrgyzicus and Tyrannosaurus rex (T. rex) were both theropods β€” although T. rex lived later during the Cretaceous period and in different parts of the world β€” dinosaurs who walked on strong back legs and had shorter front limbs. Modern-day birds evolved from theropods.Β 

NEWLY DISCOVERED DINOSAUR SPECIES IS ONLY GREEN FOSSIL EVER FOUND, TO BE DISPLAYED IN LA

Professor Oliver Rauhut of the Bavarian Collection of Paleontology and Geology in Munich, who was a first author of the study published in the Zoological Journal of the Linnean Society, said in a statement: "This discovery closes a huge gap in our knowledge of the Jurassic theropods. It leads us to important new insights into the evolution and biogeography of these animals."Β 

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A smaller, juvenile Alpkarakush kyrgyzicus specimen was found at the site along with the adult dinosaur, leading researchers to believe it may have been a parent and child.Β 

Alpkarakush kyrgyzicus is named for a mythological KyrgyzΒ bird called Alpkarakush that often aids heroes in critical moments and for being found in the Kyrgyz Republic.Β 

Dinosaur-killing asteroid likely came from beyond Jupiter, study finds

16 August 2024 at 11:55

Scientists investigating the asteroid that wiped out dinosaurs after slamming into the Earth 66 million years ago have released a new study suggesting that it formed "beyond the orbit of Jupiter."Β 

The findings published in Science on Thursday say that the researchers made their determination after examining the geological remains of the impact in modern day Chicxulub, Mexico.Β 

The team, led by Mario Fischer-GΓΆdde of the University of Cologne in Germany, "measured ruthenium isotopes in the impact deposits and compared them with multiple classes of meteorites, which represent potential impactor compositions," according to a summary of the study.Β 

"They found that the Chicxulub impactor was a carbonaceous asteroid that formed in the outer Solar System," it continued. "Additional measurements of five other impacts showed that those were due to silicate asteroids that formed in the inner Solar System."Β 

NEWLY DISCOVERED DINOSAUR SPECIES IS ONLY GREEN FOSSIL EVER GOUND, TO BE DISPLAYED IN LOS ANGELESΒ 

An abstract of the study also said that the impact of the asteroid at ChicxulubΒ produced "a global stratigraphic layer that marks the boundary between the Cretaceous and Paleogene eras."Β 

"That layer contains elevated concentrations of platinum-group elements, including ruthenium," it continued, adding that the scientists’ data indicates the asteroid that struck Mexico had "formed beyond the orbit of Jupiter."Β 

FLASHBACK: STUDY SAYS ASTEROID THAT KILLED THE DINOSAURS ALSO CAUSED A GLOBAL TSUNAMIΒ 

"So far, Chicxulub... seems to be a unique and rare case of a carbonaceous-type asteroid hitting Earth," Fischer-GΓΆdde told The New York Times, which reports that previous research has suggested similar findings regarding the asteroid’s true origin.Β 

"Without this impact, what would our Earth look like today?" Fischer-GΓΆdde added. "We should probably value, a bit more, that we are around and this is maybe a lucky coincidence that everything came to place like it is today."Β 

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