Conrad, T. A. (1849). Appendix I. Descriptions of fossils. In Dana, J.D. (Ed.) Geology. With a Folio Atlas of twenty-one Plates. United States Exploring Expedition during the Years 1838, 1839, 1840, 1841, (1842) Under the Command of Charles Wilkes, U. S. N.
135378
Conrad, T. A.
1849
Appendix I. Descriptions of fossils. In Dana, J.D. (Ed.) Geology. With a Folio Atlas of twenty-one Plates. United States Exploring Expedition during the Years 1838, 1839, 1840, 1841, (1842) Under the Command of Charles Wilkes, U. S. N.
In: Dana, J. D. 1849, United States Exploring Expedition during the years 1838, 1939, 1840, 1841, 1842 (…). Vol. X. Geology. Appendix I, 723-720. Philadelphia