“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,” 그는 말했다.
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 피트 (1.4 미터) tall and was nearly 20 피트 (6 미터) in length. 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, 성명서. 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 dinosaurs — this monster dinosaur was definitely a much friendlier plant-eater,” Klein said.
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, 그는 말했다.
연구 published Thursday in Historical Biology