Description of a very large fossil gasteropod from the state of Puebla, MexicoDOI: info:10.5479/si.00963801.3-131.140v. 3No. 131140–142, 1 pl.
White, C. A. 1880. "Description of a very large fossil gasteropod from the state of Puebla, Mexico." Proceedings of the United States National Museum, 3, (131) 140–142, 1 pl.. https://doi.org/10.5479/si.00963801.3-131.140.