It looks like 2024 will indeed be the year of the dinosaur. After research regarding Nanotyrant on January 3, a new dinosaur species was discovered! This dinosaur is Tyrannosaurus mcraeensis, a meat-eating dinosaur from the Cretaceous period. As the name suggests, this dinosaur is a relative of Tyrannosaurus rexyou know!
This discovery put an end to loneliness T.rex which since its inception was considered the only one Tyrannosaurus which exists. Of course the presence of species Tyrannosaurus This recently opened up many possibilities regarding evolution T. rex and his relatives. However, there are still many questions about this new species. Curious about Tyrannosaurus mcraensis? Come on, check out this article!
1. Discovery of Tyrannosaurus mcraeensis fossils
Tyrannosaurus mcraensis fossil reconstruction (commons.wikimedia.org/SlvrHwk)
Actually, this dinosaur fossil was discovered a long time ago, to be precise in 1983. Lower jaw fossil Tyrannosaurus mcraeensis found in the formation Hall Lake, New Mexico, United States. Because it was incomplete, at that time the fossil was categorized as a fossil Tyrannosaurs rex. This fossil is stored in New Mexico Museum of Natural History and Science and coded NMMNH P-3698, obviously Live Science.
It was only in 2013 that research was carried out again because there were irregularities in the fossil. After years of research, finally in 2024 it was discovered that the fossil was not his T. rex. But it belonged to another dinosaur that was closely related to the tyrant king.
2. Difference between Tyrannosaurus mcraensis and Tyrannosaurus rex
Difference between Tyrannosaurus mcraensis and Tyrannosaurus rex (twitter.com/Arturo Garcia)
Articles published in journals Nature explain some of the differences between Tyrannosaurus rex and Tyrannosaurus mcraeensis. The lower jaw of this new species is slimmer and curved, in contrast to the T. rex which tends to be large and straight. It also has fewer teeth in comparison Tyrannosauridae Another thing, explained Nick Logrich as a scientist who researches fossils Tyrannosaurus mcraeensis.
They also live in different times, where Tyrannosaurus mcraeensis older than T. rex. T. rex lived about 68-66 million years ago while Tyrannosaurus mcraeensis lived about 73-71 million years ago. Make Tyrannosaurus mcraeensis about 3 to 5 million years older than T. rex.
3. Lived in the Cretaceous period
Cretaceous era illustration (twitter.com/Emily Willoughby)
Despite living in a different time, however Tyrannosaurus mcraeensis also lived in the Cretaceous period just like T. rex. The Cretaceous period lasted approximately 145 to 66 million years ago. Not only that Tyrannosaurus mcraeensis and T. rex who lived during this period. Some famous dinosaurs such as Triceratops, Parasaurolophus, Giganotosaurus, and Velociraptor also lived in the Cretaceous period.
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More details Tyrannosaurus mcraeensis live in the era Campanian until the beginning of the era Maastrichtian. Whereas T. rex living at the end of an era Maastrichtian. The condition of the earth at that time was covered by forests and grasslands. Animals such as birds and mammals also roam freely. The Cretaceous period was a paradise for dinosaurs.
4. It reaches 12 meters in length!
Tyrannosaurus mcraensis (twitter.com/Davin Arya Nirwasita (Commissions CLOSED))
Reported The New York Times, This new species is estimated to have a length similar to T. rex. Sebastian G. Dalman, who directly examined the fossil, believes that this animal could have grown to 39 feet or 11.7 meters long. The size is quite large for a meat-eating dinosaur. In fact, this estimate could continue to increase if new fossils are discovered. It is possible that the size turns out to be larger than initial estimates.
5. Peak carnivores in their habitat
Tyrannosaurus mcraensis (twitter.com/Manu_Paleoart)
Have similar bodies, sizes and habitats T. rex make Tyrannosaurus mcraeensis also occupy the same position in nature. Inhabit North America, Tyrannosaurus mcraeensis become top predators in their habitat, it is clear Earth.com. It is possible that this dinosaur preyed on other dinosaurs such as Ceratopsian, Hadrosauridae or Sauropoda. Food that is also very popular with his brother, T. rex.
Also read: 6 new mammals discovered in 2023, some of which are fossils!
2024-01-20 11:29:00
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