Jaw mechanics of a shell-crushing Jurassic fish revealed

14 enero 2015

The feeding habits of an unusual 200-million-year-old fish have been uncovered by an undergraduate in a groundbreaking study. The Jurassic fish, Dapedium, known from the Lower Lias rocks of the Dorset coast around Lyme Regis, was one of many new groups of fishes that came on the scene 200 million years ago. These included ancestors of the modern teleost fishes — the group of 30,000 species of salmon, cod, seahorses, and perch — that dominate the waters today.