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 Conrad, T. A., Descriptions of three new genera; twenty-three new species middle Tertiary fossils from California and 



one from Texas: Acad. Nat. Sci. Philadelphia Proc, vol. 8, pp. 312-316, 1S56. 

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1857. 



Conrad, T. A., U. S. Pacific railroad explorations and surveys, 32d parallel and California vol 7 p 196 Pis IX X 

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Tuomey, M., and Holmes, F. S., Pliocene fossils of South Carolina, 152 pp., 28 pis., 1857. (Part on Echinodermata 

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Desor, E., Synopsis des echinides fossiles, 64+490 pp., 43 pis., Geneve, Paris, and Wiesbaden, 1858. 



Emmons, E. , Agriculture of the eastern counties together with descriptions of the fossils of the marl beds: North Caro- 

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Holmes, F. S., Post-Pliocene fossils of South Carolina, Charleston, 1860. (Part on Echinodermata published in 1858.) 



Michelin, M. H., Revue des especes connes et nouvelles du genre Mellita: Rev. et mag. zoolo<de 9 d ser vol 10 pd 

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1859. 



Gabb, W. M., Catalogue of the invertebrate fossils of the Cretaceous formation of the United States: Acad. Nat. Sci 



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1861. 



Michelin, M. H., Monographie des Clypeastres fossiles: Soc. geol. France Mem., 2d ser., vol. 7, pp. 103-147 Pis IX- 

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1863. 



Remond, Atjguste, Description of four new species of Echinodermata from the Tertiaries of Contra Costa County: Cali- 

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Description of two species of Scutella: California Acad. Nat. Sci. , vol. 3, pp. 13-15, 1S63. 



Lutken, C. F., Bidrag til kundskab om Echiniderne: Vidensk. medd., Kjobenhavn, 1863. 



1864. 



Meek, F. B., Check list of invertebrate fossils of North America, Miocene: Smithsonian Misc. Coll., vol. 7 (1S3), pp. 

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1865. 



Conrad, T. A., Catalogue of the Eocene * * * Echinodermata * * * of the United States: Acad. Nat. Sci. 

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Descriptions of new species of Echinidse: Acad. Nat. Sci. Philadelphia Proc, vol. 17, p. 75, 1865. 



Observations on American fossils with descriptions of two new species: Acad. Nat. Sci. Philadelphia Proc ( vol. 



17, p. 184, 1865. 

 Dawson, J. W., Post-Pliocene deposits at Riviere du Loup and Tadoussac: Canadian Naturalist, 2d ser., vol. 2, pp. 

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1866. 



Conrad, T. A., Check list of the invertebrate fossils of North America; Eocene and Oligocene: Smithsonian Misc. 



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XIX, figs. 4-8, 1866. 

 Packard, A. S. , jr. , On the glacial phenomena of Labrador and Maine: Boston Soc. Nat. Hist. Mem. , vol. 1, pt. 2, pp. 



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