Xiphactinus vetus and the distribution of Xiphactinus species in the eastern United States

D. R. Schwimmer, J. D. Stewart, and G. D. Williams

1997

Article

Journal of Vertebrate Paleontology 17(3):610-615

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Taxa discussed in this work:

• Portheus angulatus

Taxonomy:

• Portheus angulatus belongs to Xiphactinus vetus - Schwimmer et al. (1997)
• Polygonodon rectus belongs to Xiphactinus vetus - Schwimmer et al. (1997)