Abstract
FOSSILS OF THE AMAZONIAN DEVONIAN.—MR. R. Rathbun, late of the Geological Survey of Brazil, has published a list and description of the Brachiopods of the three Amazonian-Devonian localities, showing that of the twenty-one species recorded from the Mæcurú, thirteen were, also found on the Caruá, including all the commoner, species of the former. There is not so close a relation ship between the Ereré fauna and the, Mæcurú Several, of the commonest Mæcurú species do not occur at Ereré, and vice versa. At Ereré there are five species of Lingula, four of Chonetes, four of Spirifara; at Mæcuru there; are no species of Lingula, four of Chanetes, and six of Spirifera. Several of the Amazonian shells are identical with those, of the North American Devonian three in the Mæcuru, and Caruá, viz., Spirifera duodenaria, Amphigenia elongata, and Strophodonta perplana. Two forms, of these are only known in the Corniferous limestone and Schoharie grit of North America. The Ereré beds are more closely related by their fossils to the Hamilton group than to any other North American group. In Pará, on the whole, there is the same general succession of species as in the Corniferous and Hamilton groups of North America, and a similar intermingling of forms. The lamellibranchs are not published yet, but it appears probable that many species are identical with New York State forms. Among the Trilobites are species of Homalonotus, Phacops, and other genera. (Proc. Boston Society of Nat. Hist., 1878.)
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Biological Notes . Nature 19, 469–470 (1879). https://doi.org/10.1038/019469a0
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DOI: https://doi.org/10.1038/019469a0