Reptilia - Saurischia

PaleoDB taxon number: 38658

Alternative spelling: Haplacanthosaurus

Synonym: Haplocanthus Hatcher 1903 (taxon 57369)

Full reference: J. B. Hatcher. 1903. A new name for the dinosaur Haplocanthus Hatcher. Proceedings of the Biological Society of Washington 16:100

Parent taxon: Diplodocoidea according to P. D. Mannion et al. 2019

Sister taxa: Amphicoelias, Cetiosaurus glymptonensis, Diplodocimorpha

Subtaxa: Haplocanthosaurus delfsi, Haplocanthosaurus priscus

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Ecology: ground dwelling herbivore