. The geology of Nova Scotia, New Brunswick, and Prince Edward Island, or, Acadian geology [microform]. Geology; Geology, Stratigraphic; Paleontology; Geology, Economic; Géologie; Géologie stratigraphique; Paléontologie; Géologie économique. 410 THE CAIlDONIFEnOUa SYSTEM. 4)1 i' doubled up. Some bods also seem to contnin one species of plant only, all others being excluded; of this wo have a striking example in the argillaceous hIuiIc (No. GO): in the top of this bed, through a thickness of three inches, wo find Asterophyllitos foliosa, piled up layer above layer, from the base of the cliff to
. The geology of Nova Scotia, New Brunswick, and Prince Edward Island, or, Acadian geology [microform]. Geology; Geology, Stratigraphic; Paleontology; Geology, Economic; Géologie; Géologie stratigraphique; Paléontologie; Géologie économique. 410 THE CAIlDONIFEnOUa SYSTEM. 4)1 i' doubled up. Some bods also seem to contnin one species of plant only, all others being excluded; of this wo have a striking example in the argillaceous hIuiIc (No. GO): in the top of this bed, through a thickness of three inches, wo find Asterophyllitos foliosa, piled up layer above layer, from the base of the cliff to tlie crop of the bed— a distance of 200 feet—clearly proving that these plants grew on the ; This description may give the reader some idea of the abun- dance and perfection of the fossil vcgetatimi i)rcserved in the Sydney Coal measures. As already stated also, a bed of shale in the Sydney section has afforded the finest example yet known of carboniferous rain- marks. These occur in a bed at the top of one of those bands in which the sandstones arc rippled and fossils rare. At some distance below it there are mussel shales, and ten feet above a stigmaria underclay and coal. These marks then were preserved in beds formed during the transition from aquatic to terrestrial conditions, by the silting up of a lagoon or creek, and most probably on a bed daily left dry at low tide. In a previous chapter mention was made of the curious footprints called Itusichnltes, as occurring in the Lower Carboniferous. In the Cape Hrcton Coal-field an interesting species occurs in the ('oal meas- ures (Fig. 157). The specimen from which the figure was taken was kindly presented to me by II. Brown, Esq. Fig. 157.—Itusichnilca Acculicua—Dawson. Each impression consists of the easts of contiguous rounded furrows, each about one-eighth of an inch in breadth, and crossed by curved ;', -rfr. Please note that these images are extracted from scanned page images that may have been d
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
