Conrad, T. A. (1857). Description of the Tertiary fossils collected on the survey. Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean. 6(2): 69-73.
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Conrad, T. A.
1857
Description of the Tertiary fossils collected on the survey
Reports of explorations and surveys, to ascertain the most practicable and economical route for a railroad from the Mississippi River to the Pacific Ocean