Particle.news

Download on the App Store

Fossil Footprints Reveal 76-Million-Year-Old Mixed-Species Dinosaur Herd

The PLOS One study confirms side-by-side tracks of multiple dinosaur species from Alberta’s Cretaceous, prompting expanded excavations to uncover more herding evidence.

A herd of ceratopsians (Styracosaurus albertensis) accompanied by an ankylosaur (Euplocephalus tutus) walk through an old river channel under the watchful eyes of two tyrannosaurs (Gorgosaurus libratus).

Overview

  • The site at Dinosaur Provincial Park preserves 13 ceratopsian imprints alongside a single probable ankylosaur track and a small carnivore print dated to 76 million years ago.
  • Two large tyrannosaur tracks intersecting the herd’s path suggest predator stalking behavior influencing group defense strategies.
  • Scientists are applying refined digital elevation models and search methods to locate additional tracksites across the park.
  • Some paleontologists contend that the ankylosaur prints may instead be poorly preserved hadrosaur footprints, fueling debate over track identification.
  • Researchers draw parallels to modern multi-species herds like wildebeest and zebra to infer ancient social dynamics and predator-detection mechanisms.