RAPID CITY, S.D. (AP) — A team led by a South Dakota School of Mines and Technology assistant professor has discovered a new species of plant-eating dinosaurs that was a food source for an extinct relative of the crocodile.

Clint Boyd and two colleagues from other universities published fossil evidence of a crocodyliform feeding on small ornithopod dinosaurs. The findings, published this week in the academic journal PLOS ONE, are significant because dinosaurs are typically depicted as the dominant species, he said.