Story perspectives

Ancient Fossils Reveal 280-Million-Year-Old Predator-Prey Dynamics

3/4/2026

Summary

Story summary

University of Toronto Mississauga paleontologists report the oldest direct evidence of predator-prey interactions from the early Permian period, over 280 million years ago, in Scientific Reports.
The study analyzes fossilized remains of young herbivores, Diadectes, found in Texas.
Tooth marks indicate predation by large synapsid predators such as Varanops and Dimetrodon.
The findings challenge previous assumptions about predator-prey timelines, suggesting sophisticated ecological interactions existed earlier than thought.

1 of 1

Story summary

University of Toronto Mississauga paleontologists report the oldest direct evidence of predator-prey interactions from the early Permian period, over 280 million years ago, in Scientific Reports.
The study analyzes fossilized remains of young herbivores, Diadectes, found in Texas.
Tooth marks indicate predation by large synapsid predators such as Varanops and Dimetrodon.
The findings challenge previous assumptions about predator-prey timelines, suggesting sophisticated ecological interactions existed earlier than thought.