Brontosaur Killers: Late Jurassic Allosaurids as Sabre-Tooth Cat Analogues.

According to Kowalevskian logic, sabre-tooth top predators evolve to harvest giant, slow-moving prey. Late Jurassic sauropods, who dwarfed the largest contemporaneous predators, may be ecological equivalents of proboscideans and ground sloths. Allosaurid theropods evolved unusual jaw joints that permitted exceptional gapes, special neck muscle attachments that increased the ventral-flexing leverag…