This piece is taken from “Dinosaurs In The Round” too. Hunting pack of allosaurs try to bring down a medium sized sauropod (Camarasaurus). This scene is inspired by a sculpture group scene I saw in an ”exhibition” made in the gardens around the Rocca dei Rettori in Benevento (that we visited with our friends Marco Signore and Luciano Campanelli while I was invited to do a talk and exhibition for a Palaeontological event in Benevento). The park was a bit abandoned, but it was nevertheless beautiful and the anatomy of the dinosaurs sculptures was fairly accurate.
It is also predominantly inspired by the way lions bring down buffalo or even elephants… pack hunting at the highest level!
However, I doubt very much that Allosaurus could do anything with Brachiosaurus… except perhaps attack babies or scavenge a leg or two (these two are from “Dino Babies”…. see it in 3D in the new “Dinosaurs In Your Face” compilation).