Conrad, T. A. (1857). Descriptions of three new genera; twenty-three new species middle Tertiary fossils from California and one from Texas. Proceedings of the Academy of Natural Sciences of Philadelphia. 8: 312-336.
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Conrad, T. A.
1857
Descriptions of three new genera; twenty-three new species middle Tertiary fossils from California and one from Texas
Proceedings of the Academy of Natural Sciences of Philadelphia