. Bulletin - New York State Museum. Science. 152 NEW YORK STATE MUSEUM duced in any of the strata elsewhere exposed, and their attitude toward the Perce strata farther north has just been expounded, from which we may infer that these rocks are normally subjacent to the latter and have been separated therefrom by the downthrow of the superjacent mass. These Cap Barre beds, so far as exposed, may attain a thickness of 75 to 100 feet. Their relations with the strata at Mt Joli are determinable from no structural relation exhibited, for they are separated from the latter by the long interval of th
. Bulletin - New York State Museum. Science. 152 NEW YORK STATE MUSEUM duced in any of the strata elsewhere exposed, and their attitude toward the Perce strata farther north has just been expounded, from which we may infer that these rocks are normally subjacent to the latter and have been separated therefrom by the downthrow of the superjacent mass. These Cap Barre beds, so far as exposed, may attain a thickness of 75 to 100 feet. Their relations with the strata at Mt Joli are determinable from no structural relation exhibited, for they are separated from the latter by the long interval of the. Cap Barre from North cove North cove. These beds contain fossils, but very sparsely. I have found a few Lingulas and an Ambocoelia-like brachiopod probably allied to Spirifer modest us Hall, which is a Helderberg species, also a small corrugated Leptostrophia like L. oriskania Clarke, but the age and position of the strata are decisively indicated by the presence of a species of the trilobite Dicranurus. This fossil is of more than ordinary interest. The genus Di- cranurus has been described heretofore only from two geologic formations, the Helderberg (New Scotland beds and Coeymans. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original New York State Museum; New York State Museum. Albany : New York State Education Dept
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectscience, bookyear1887
