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Roughly 76 million years in the past, a herd of herbivorous dinosaurs left a path of footprints that reveals completely different species might have walked collectively – and been stalked collectively, too.
An worldwide staff of paleontologists found the trackways preserved in ironstone at Canada’s Dinosaur Provincial Park. This space is thought for its outstanding fossil specimens, however these are the primary good set of tracks discovered within the space.
They reveal one thing fascinating: tracks from no less than 5 ceratopsian dinosaurs seem alongside these of an ankylosaurid, which means this could possibly be the primary proof of multi-species herding amongst dinosaurs.
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However, whereas the researchers can affirm these footprints have been shaped at across the similar time, there could possibly be hours or days separating them.
“Ceratopsians have long been suspected to have lived in herds due to the existence of bone beds which preserve multiple individuals of the same species together,” says paleontologist Jack Lovegrove from the Natural History Museum in London.
“However, these bone beds only tell us for certain that these animals died together or the bodies accumulated after death. The preserved trackways of several ceratopsians walking together in a group is rare evidence for these animals living together.”
Views of the Skyline Tracksite shortly after discovery (a) and after excavation (b). The sediment displacement rim (white arrows) of what turned out to be the primary ceratopsid observe was very near an uncovered tyrannosaurid observe (black arrow). (Bell et al., PLOS One, 2025)
The positioning of those footprints recommend the animals have been visiting a water supply, maybe following an historical river. Eerily, different units of tracks working parallel to the waterline betray predators within the midst: two tyrannosaurs and one other small, meat-eating dinosaur, presumably a therapod.
“The tyrannosaur tracks give the sense that they were really eyeing up the herd, which is a pretty chilling thought, but we don’t know for certain whether they actually crossed paths,” says paleontologist Phil Bell from the University of New England in Australia.
Even if that is extra of a montage of cretaceous life, as Lovegrove puts it, it has enabled the researchers to establish many extra trackways throughout the park, which guarantees way more element on how these creatures lived alongside one another.
The analysis was printed in PLOS One.
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