Report on the Fossils from Santa Fe de Bogota, presented to the Geological Society by Evan Hopkins, Esq. F.G.S.

Abstract

The fossils from Bogotá presented by Mr. Hopkins are all remains of Mollusca. They are embedded in a very dark and compact limestone; and are all, apparently, from the same formation. They include 17 species, most of which are in very good preservation. Of these, 9 are described species, and are identical with fossils from the same neighbourhood, described in the memoir by M. Von Buch, “On the Fossils collected in America by MM. Humboldt and Degenhardt,” in the paper entitled “Notice of the Oolitic Formations in America,” by Mr. Isaac Lea, printed in the “Transactions of the American Philosophical Society for 1841,” and in the account of the fossils collected in Columbia by M. Boussingault, given by M. Alcide d9Orbigny, in the Palæontology of his South American Voyage, published in 1843. All these papers have been consulted in the preparation of this Report. The formation in which these fossils were found has been referred by M. Von Buch to the Cretaceous era, by Mr. Lea to the Oolitic period, and by M. d9Orbigny to the Neocomian epoch of the Cretaceous era. The result of an examination of Mr. Hopkins9s specimens, more especially of such as are new, bears out the view of their cretaceous origin first taken by M. Von Buch, and afterwards adopted by M. d9Orbigny.