User blog comment:ASDFGirl/The Future of Fossils and Archeology: Revival/@comment-35427633-20180510142803/@comment-68.149.149.52-20180511022759

unlikely to be coordinated pack hunting, but it is quite possible that Allosaurus opportunistically mobbed large prey items as a hunting method. there is evidence of in species fighting in allosaurus and even cannabilism, so such events would've been rare.