. Annual report. New York State Museum; Science; Science. 40 NEW YORK STATE MUSEUM. of the Onondaga limestone of New York and in their lithic and stratic features are very suggestive of that rock. At this locality fossils are pro- fuse, especially Rensselaeria ovoides van gaspensis, Camaro- toechia pliopleura, Pro- etus phocion, Phacops 1 o g a n i. The combined thick- ness of the two parts of this divi- sion is about loo feet. 2 The chert^bearing, impure limestones constitute most of the exposures to be found on the south slope of the Forillon and Sketch of Shiphead from the coule'e separatin
. Annual report. New York State Museum; Science; Science. 40 NEW YORK STATE MUSEUM. of the Onondaga limestone of New York and in their lithic and stratic features are very suggestive of that rock. At this locality fossils are pro- fuse, especially Rensselaeria ovoides van gaspensis, Camaro- toechia pliopleura, Pro- etus phocion, Phacops 1 o g a n i. The combined thick- ness of the two parts of this divi- sion is about loo feet. 2 The chert^bearing, impure limestones constitute most of the exposures to be found on the south slope of the Forillon and Sketch of Shiphead from the coule'e separating it from Cape Gaspe may be Studied whereVer the SOil is thin. So abundant is the chert that by differential weathering it has been left standing out on all exposed surfaces, the rock presenting an altogether similar aspect to the cherty layers of the Onondaga limestone. The rock has been permeated by silicious matter to such a degree that it passes into "rotten stone" after extraction of the lime. Excellent outcrops of these layers are seen at the foot of the King's road and up this road over the slopes to the west. Stripping of the soil in the hunt for silver-lead veins in recent years has exposed the strata at several spots along the highway below and above Grande Greve. Fossils do not abound in all layers, but they are extremely abundant in some and these are the chief repository of the fauna of the formation. Eatonia pecu- liar i s constitutes entire layers, Spirifer cyclopterus, S. plica- tus, , Dalmanites dolbeli, D. esnoufi. Lie has bellamicus, Conularia lata, are characteristic and abundant species. Hipparionyx proximus, Rhipidomella muscu- losa, R. logani, Megalanteris thunei and Chonetes cana- densis, the index species of the lowest beds, have not been observed at this horizon. It is not easy to estimate the thickness of these beds. I should. Please note that these images are extracted from scanned page images that may have been digitally enhanc
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectscience, bookyear1902
