. 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. ''.;'i, JOS THE CAUBONIFEROUS SYSTtiM. delicate oblique striao on their edges. The ribs vary much in their distance in different parts of the same specimen, and in different ' ' Fig. 117.—Conularia planicostata. ' • specimens (from five in a line to ten in a line). They form an angle of about 120° in the middle line of each face—breadth of full-grown speci
. 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. ''.;'i, JOS THE CAUBONIFEROUS SYSTtiM. delicate oblique striao on their edges. The ribs vary much in their distance in different parts of the same specimen, and in different ' ' Fig. 117.—Conularia planicostata. ' • specimens (from five in a line to ten in a line). They form an angle of about 120° in the middle line of each face—breadth of full-grown specimens about half an inch; length, two inches or more. There is no indication whatever that this shell had any internal partitions, though it occurs both flattened, as at Big Plalstcr Rock, and retain- ing its original form, as at Irish Cove and Windsor. Mr Ilartt has proposed the name "Nova Scotica" for a more elongated form, with finer and more numerous ribs; but on comparing numerous specimens, I am inclined to regard it as a variety. The shell of Conularia is usually regarded as that of a Ptcropod, which seems the most probable view. If the shell of a Ccphalopod, it must have been of the nature of a straight Argonauta. It is curious to observe in the flattened specimens that the shell always gives way at the edges, with- out breaking, as if there was a suture or weak line there. The shell was exceedingly thin, especially at the smaller extremity, where it seems to terminate in an obtuse rounded form. The aperture in the best specimens rises at the sides in angles corresponding to those of the plications. Oasteropoda. Euomphalus, a small species with narrow whorls, resembling E. quadratus, M'Coy, but slightly rounded above and marked with lines of growth, appears in fragments in Mr Ilartt's collections from Windsor, and seems to be the same with still more imperfect specimens in my own collection from the galena-bearing limestone of Gay's River, A small s
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
