Le genre Acracanthus se rencontre dans: Czaplewski, N. J., R. L. Cifelli, and W. Langston, Jr., 1994. Catalog of type and figured fossil vertebrates, Oklahoma Museum of Natural History. Oklahoma Geological Survey Special Publication 94: 1-35.
De statut invalide (Nomen ex-dissertation), il est synonyme d'Acrocanthosaurus.