The most striking feature of Acrocanthosaurus is the high neuronal spine growing on the vertebrae of the neck, back, hips and upper tail. This barbed wire is 2.5 times higher than the height of the vertebrae from which they grow.  Some other dinosaurs also have these spines, even bigger. I Am Iron Man Thank You for The Memories Signature shirt. For example, Spinosaurus, its spines are nearly 2 meters tall, 11 times the height of vertebrae.  The lower spines have large, muscular clumps, similar to those of modern bison, so perhaps there is a thick, high line running along the back.  It is not clear what the spikes are for, it is possible to communicate, store fat or regulate body temperature. All cervical vertebrae and lumbar vertebrae have large lateral chambers (the lateral cavity is the hollow bone in the spine sides of the dinosaurs, which helps to reduce bone mass while maintaining its strength), while burning live tail of smaller lateral chambers.
This feature is more similar to the shark teeth than with Allosaurus. Except for vertebrae, Acrocanthosaurus has a typical skeleton of a dragon. It walks with two legs, with a long and heavy tail that balances the head and body, keeping the center of gravity above the waist. The two forelimbs are shorter and stronger than Allosaurus, but the rest are all the same: each has 3 fingers, the fingers have claws. Unlike many adaptive dinosaurs for running, Acrocanthosaurus femoral bones are longer than tibia and pelvic bones,   so it probably doesn’t run very fast.  However, its legs are stronger than Allosaurus. Each foot has 4 fingers, a feature commonly found in beasts dinosaurs, but the thumb is much smaller than the other fingers, and never touches the ground.