It’s a battle for predatory supremacy in Late Cretaceous North America as these Dakotaraptor steini take on a mighty Tyrannosaurus rex.
As the viewer might guess, this scene was very much inspired by the iconic conclusion to the climax in Jurassic Park. It’s also a tribute to older dinosaur depictions wherein packs of dromaeosaurids (most commonly Deinonychus) would gang up on larger dinosaurs to take them down. It could simply be my perception, but somehow I haven’t seen as many of those scenes in more recent paleoart. I miss those days.