| 1 | Photograph of a cast from the original intaglio. The small pores are imperfections of the cast. The inner circular depressions represent the ocular nodes with the smooth crescentic visual areas on the outer edge. These are buttressed by strong orbital ridges which have been made conspicuous by the compression of the adjoining test. Natural size Horizon and locality. Catskill beds. Andes, Delaware co., N. Y. |
The original is in the geological museum of Rutgers College, New Brunswick, N. J.
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