A group of scientists from the Society for Vertebrate Paleontology They found remains fossils of one of what would be the embryo of a tyranosaurium rex of about 70 million years approximately. The skull measures what that of a mouse.
According to Science Live, this is a big step for science since no remains of the embryo of a king tiranosaurio which was found in the area of Alberta, Canada.
Before it was a massive predator, every T. rex was a helpless hatchling—& all tyrannosaurs evolved from small ancestors. You may know T. rex, but the full tyrannosaur story includes many species & spans 100 mil yrs of evolution. For more: T. rex: The Ultimate Predator opens 3/11. pic.twitter.com/QIYDYRgZXU
— American Museum of Natural History (@AMNH) March 5, 2019
It all started when researchers found the claw of a tyrannosaurus in 2017, which, in turn, led them to study a jaw of the tyrannosaurus embryo that was found in 1983, which helped researchers better understand the characteristics of tyrannosaurs. rex.
The small jaw, according to paleontologist Gregory Funston of the University of Edinburgh in Scotland and lead author of the study indicated that it has about eight small teeth.
The skeleton fossil of the embryo The tyrannosaurus rex was so small that, finding it embedded in the rocks, they had to use a particle accelerator to get a clear image of the skull without having to remove it.
“It is surprisingly similar to the jaw of other young tyrannosaurs. It has a deep groove on one side and a distinctive chin: both are characteristics that distinguish tyrannosaurs from other carnivorous dinosaurs. “
As the teeth are not fully developed in the tyrannosaurus rex fossil, the researchers believe that it is the remains of a embryo of the species that died before being able to hatch, although no remains of it have been found.
One of the main reasons paleontologists point to is that king tiranosaurios laid eggs with a very soft shell, which did not allow their fossilization correctly although sufficient evidence on this hypothesis has not yet been found.
With information from Live Science.
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