. Acadian geology [microform] : the geological structure, organic remains and mineral resources of Nova Scotia, New Brunswick and Prince Edward Island. Geology; Paleontology; Geology; Geology; Geologie; Paléontologie; Géologie; Géologie. %m w iin "^3^ " ' \4 i>ir >⢠''â ^Ups, < i ; : '1 j|I| i" ' u (If ; 1 â j i â . I i 1 ! lii! - 378 THK CARnONIFEROUS SYSTEM. similar to that in the last species. No doubt a more perfect specimen would show many points of difference between these species, not now appreciable; but in the meantime the very different form of the teeth i
. Acadian geology [microform] : the geological structure, organic remains and mineral resources of Nova Scotia, New Brunswick and Prince Edward Island. Geology; Paleontology; Geology; Geology; Geologie; Paléontologie; Géologie; Géologie. %m w iin "^3^ " ' \4 i>ir >⢠''â ^Ups, < i ; : '1 j|I| i" ' u (If ; 1 â j i â . I i 1 ! lii! - 378 THK CARnONIFEROUS SYSTEM. similar to that in the last species. No doubt a more perfect specimen would show many points of difference between these species, not now appreciable; but in the meantime the very different form of the teeth is a sufficient distinction. In //. Lyelli these arc conical and pointed. In the present species they arc of a pecidlar wedge shapeâtheir diameter transversely to the jaw being the greatest at the base, while at the top they are sharpened to an edge. The peculiar form of the intermaxillary teeth may also serve as a distinctive character, though those of //. Lyelli arc not yet known. The form of the vertebra would further seem to indicate difTerent proportions of body. On the whole, while this species is in all probability generically related to the last, it is certainly specifically distinct. Its habits and food may have been similar, but its dental apparatus was stronger and more formidable. Hylonomus Wymani, Dawson. This is the species of Hylonomus originally detected by Professor Wyman in the specimens brought from the Joggins by Sir C. Lyell and myself. Remains of several additional individuals have since been found, but no skeleton approaching to completeness. I shall describe this, the most diminutive of the reptiles of the Nova Scotia coal, with the aid of the fragments represented in Fig. 146, most of which arc almost microscopic in size. Fig. 146.âIhjlonomus Wymani, (^^UHiut^^/^f^^^^^^nSij^ c-^-Vi-lr-ff B'^s=' v«â (a) Maiidililc nnd mnxillii; nnt. sizo. (/) Bones of limb and pclvia; nat. size and mag. (*, c, d) Portions of tlie same; magnified.
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
