.. Key to the upper Devonian of southern New York; designed for teachers and students in secondary schools . s from a few feet only in the east to 125feet in central New York. Its fossils are few and generallysmall, and mainly confined to the basal and upper layers. (SeeFigs. 1-9, ) Fish remains are reported from these shales onthe shore of Lake Brie and at a few other localities. Above, are the Sherburne shales and sandstones in the east,the Lower Portage shaly sandstones of Cayuga lake section, thelower Cashaqna and Gardeau shales (Naples beds) and sandstonesof the Genesee section and w
.. Key to the upper Devonian of southern New York; designed for teachers and students in secondary schools . s from a few feet only in the east to 125feet in central New York. Its fossils are few and generallysmall, and mainly confined to the basal and upper layers. (SeeFigs. 1-9, ) Fish remains are reported from these shales onthe shore of Lake Brie and at a few other localities. Above, are the Sherburne shales and sandstones in the east,the Lower Portage shaly sandstones of Cayuga lake section, thelower Cashaqna and Gardeau shales (Naples beds) and sandstonesof the Genesee section and west to Lake Erie. Thickness, 150-250 feet. Fossils, rare: Chonetes,Cardiola, Eunulicardium, Clad-ochonus, etc. See and VIII. Still higher up in the Portage are the Ithaca beds of theCayuga section and to the east, 300-500 feet thick, representedfarther west by the upper Naples beds. Very fossilferous fromIthaca eastward. See Plates V-VIII. Somewhat fossiliferouswestward, though bearing a very different fauna, especially char-acterized by coiled Cephalopods and fish remains. 6n< ^ fft < &.. Q^ o H> - g < ^ ol^ cs CDCD CDO 6^ 14 §5
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
