Dinosaur fossil from a supposed huge carnivore actually belongs to something else

A dinosaur fossil footprint found about 50 years ago is from a plant-eating dinosaurnot a huge meat-eating dinosaur as previously thought, secondo un nuovo studio.

The footprint, which dates back to the Triassic Period about 220 milioni di anni fa, was initially thought to have come from a large dinosaur from the Eubrontes family, said lead study author Anthony Romilio, a technical assistant in the School of Chemistry and Molecular Biosciences at the University of Queensland in Australia, in una dichiarazione.
He worked with a team of international researchers to reanalyze the fossil and found the footprint belonged to the Prosauropod, an herbivorous dinosaur. This would make the footprint the only physical evidence of any Triassic-age Prosauropod in Australia, Romilio said.
    The fossil was discovered in a coal mine in Ipswich, a city west of Brisbane, quasi 656 piedi (200 metri) metropolitana. Scientists at the time estimated the creature that made the footprint to have legs over 6 piedi (2 metri) tall, which would have made it the largest carnivorous dinosaur of the Triassic period, Egli ha detto.
      Romilio wasn’t buying itin part because of a lack of consistent data regarding the fossil.
        I knew about this fossil many years ago and was surprised there was no consensus on basic details such as the footprint length or even its shape,” Egli ha detto.
        Researchers looked at 3D images of the fossil footprint to determine what type of dinosaur made those tracks.

        One indication the footprint came from an herbivore like Prosauropod was the shape of the feet, Romilio said. Predatory dinosaurs had toes that were bunched together, but the fossil’s toes were spread apart.
          This long-necked animal had legs around 4.5 piedi (1.4 metri) tall and was nearly 20 piedi (6 metri) in lunghezza. The dinosaur likely had a small head and walked on two feet, Romilio added.
          Earlier scientists were not able to examine the fossil when conducting their research, which forced them to make their conclusions based on photographs and drawings, Romilio said in the statement.
          Geologists made plaster casts of the footprint in 1964, which were later turned into 3D models that the research team studied, said coauthor Hendrik Klein, in una dichiarazione. He is a fossil expert at Saurierwelt Paläontologisches Museum in Germany.
          The more we looked at the footprint and toe impression shapes and proportions, the less they resembled tracks made by predatory dinosaursthis monster dinosaur was definitely a much friendlier plant-eater,” Klein said.
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          Dinosaur enthusiasts can catch a glimpse of the dinosaur fossil at the Queensland Museum in Brisbane or take a look at the 3D model online.
          Romilio is investigating other dinosaur fossil footprints in China, South Korea and the United States to learn more about the creatures that made them.
            Each dinosaur created millions of tracks across its lifetime, so collectively they left significantly more fossil footprints than bones to research, Egli ha detto.
            Lo studio published Thursday in Historical Biology.

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