AllosauriaAllosauroideaAverostraAvetheropodaCarcharodontosauriaCarcharodontosauridaeCarnosauriaDinosauriaEarly CretaceousEusaurischiaNeotheropodaNorth AmericaOrionidesSaurischiaTetanuraeTheropoda

Acrocanthosaurus atokensis

Dinosaur: Acrocanthosaurus atokensis

Type: Theropod

Length*: 11.5 m 37.7 ft
Weight*: 5.8 tons 12,787 lb
*The largest known specimen

ESR: 3.5 / 4 (estimated size reliability)


Material: Few partial skeletons (also with skulls) and many referred single bones.
References: Stovall and Langston, (1950). Acrocanthosaurus atokensis, a new genus and species of Lower Cretaceous Theropoda from Oklahoma. The American Midland Naturalist. Melstrom and Demic, (2011). Acrocanthosaurus atokensis (Dinosauria: Theropoda) from the Cloverly Formation of Wyoming: Implications for Early Cretaceous North American ecosystems. Journal of Vertebrate Paleontology. Eddy and Clarke, (2008). A re-evaluation of a well-preserved skull of Acrocanthosaurus atokensis supports its carcharodontosaurid affinities.


If you are interested in Excel Professional version of Dinosaur or Pterosaur Database, write to us

Pterosaur Database