Squires, R. L. (2014). Fossil record of the Ficid gastropods Urosyca, Priscoficus, and Ficus from coastal-western North America: Phylogenetic and global paleobiogeographic implications. Contributions in Science. 522: 1-27.
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Squires, R. L.
2014
Fossil record of the Ficid gastropods <i>Urosyca</i>, <i>Priscoficus</i>, and <i>Ficus</i> from coastal-western North America: Phylogenetic and global paleobiogeographic implications