Senter, Phil; Robins, James H. (2003). "Taxonomic status of the specimens of". Journal of Vertebrate Paleontology. 23 (4): 961–965. doi:10.1671/22. S2CID85067334.
Senter, Phil; Robins, James H. (2003). "Taxonomic status of the specimens of". Journal of Vertebrate Paleontology. 23 (4): 961–965. doi:10.1671/22. S2CID85067334.