The skull of Oculudentavis khaungraae was found in a globule of amber in Myanmar, offering researchers a startlingly clear view of its features.
The researchers said the rapid-fire tooth growth puts Majungasaurus in the same league as sharks and big, herbivorous dinosaurs.
The size of the blood vessel openings revealed that the two dinosaurs were still in a phase of rapid growth at the time of death.
The shark is believed to be an ancient cousin of today's sand tiger and great white sharks, a study of its anatomical data suggested.
Technique could be used to investigate movements of ancient humans, animals and even dinosaurs
Both sides have seen rulings in their favor as the case has made its way through four courts since 2013.
Despite a likely capacity to cross large bodies of water, the location of fossil remains and the animal’s features point to an inland habitat.
The newly discovered 'Kamuysaurus japonicas' weighed either 4 or 5.3 tons, about the weight of an Asian elephant, depending on whether it walked on two or four legs respectively.
In the study, scientists suggested the idea that winged-two legged dinosaurs, started flapping their wings as a side effect of running.
While the giant carnivore's skeleton was discovered in 1991, paleontologists spent more than a decade just removing the hard sandstone that covered its bones.
It was a member of a dinosaur group called Ankylosaurs, among the most heavily armoured animals on Earth. And for good reason, considering the predators around at the time.
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