. 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. '''â Streptorhynchus crenistria, Phillips (Fig. 96). " Several crushed valves, referable to this species, occur on a speci- men of Carboniferous shale from East River, Pictou,* for which I am indebted to Dr Dawson. These valves exactly resemble certain small specimens found in several British Carboniferous shales. Their surfaces arc covered with
. 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. '''â Streptorhynchus crenistria, Phillips (Fig. 96). " Several crushed valves, referable to this species, occur on a speci- men of Carboniferous shale from East River, Pictou,* for which I am indebted to Dr Dawson. These valves exactly resemble certain small specimens found in several British Carboniferous shales. Their surfaces arc covered with numerous radiating raised striae, with a smaller rib between the larger ones, the whole being closely intersected by fine concentric lines, thus giving to tlic longitudinal ribs a crenulated appearance. Professor De Koninck coincides in my identification. " Productus.âAlthough Sir C. Lycll and Dr Dawson mention seven species of this genus as having been found in the Lower Carboniferous rocks of Nova Scotia, all these, as well as the specimens I have been able to examine, can be referred to two species only, namely, P. scmi- reticulatus and P. cora ; and I may mention that Prof. De Koninck coincides in this view. ^^ Productus semireticidatus, Martin (Fig. 97). "Anomites semireticidatus, Martin, Petrif. Derb., pi. 32, figs. 1, 2, and pi. 33, fig. 4, 1809. "This species is so well known that all I shall require to state is, that the Nova-Scotian specimens are exactly similar to those found in Europe. Producta Martini^ P. concinna, P. antiquata, P. Scotica, mentioned by Sir C. Lycll at p. 220 (vol. ii.) of his ' Travels in America,' as well as by Dr Dawson in various pages of his ' Acadian Geology,' belong to a single species, namely, Productus semireticulatus^ Sow. The * P. spinosa, Sow. (?) var. of P. Martini,' of Sir C. Lyell's * The locality is incorrectly given Shubcnacadie in the paper Please note that these images are extracted from scanne
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
