Grinnell, George Bird. (1877). Notice of a new genus of Annelids from the Lower Silurian. The American Journal of Science and Arts. Series 3, 14(81): 229-230.
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Grinnell, George Bird
1877
Notice of a new genus of Annelids from the Lower Silurian.
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The Museum of Yale College has recently received, from the rocks of the Cincinnati group, a series of fossils which are of unusual interest. The remains are shining black in color, and present a striking contrast to the associated fossils, Trilobites, Brachiopods, Crinoids, etc., which have assumed the color and constitution of the matrix. An examination of these black remains shows that they are the hard chitinous parts of Annelids.