. 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. Half- Ilartt, Id with [indric, form; jcngth surface or tail-piece, the only portion known. These Phillipsias of the Carbon- iferous are veiy interesting as the last representatives of the great family of Trilobites, so abundant in the older Palaiozoic rocks. Phillipsia Vindobonensis, Hartt.—Pygidium semi-elliptical, very convex; one or two segments appear to b
. 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. Half- Ilartt, Id with [indric, form; jcngth surface or tail-piece, the only portion known. These Phillipsias of the Carbon- iferous are veiy interesting as the last representatives of the great family of Trilobites, so abundant in the older Palaiozoic rocks. Phillipsia Vindobonensis, Hartt.—Pygidium semi-elliptical, very convex; one or two segments appear to be wanting from the anterior margin; but the width of the pygidium in that part must have been greater than its length. Ten or eleven articulations are visible on the side lobes and twelve on the axis, which is very prominent and moderately tapering. The axial rhigs are depressed, convex, becoming smaller, more crowded, and more indistinct toward the apex, llibs on side lobes depressed, convex, decreasing in length, breadth, and distinct- ness from before backward, while at the same time they become more and more inclined backward. The six anterior ribs preserved show a distinctly marked groove, originating on the posterior margin at about one-third the length of the rib from the axis, and running obliquely, increasing in depth to the end of the rib. Smooth border none, or extremely narrow at anterior angles, but becoming 3-5ths the width of the axis 7iear the posterior part of pygidium, Avhich is not visible in the only specimen I have examined. Crustacea)!.—In Mr Ilartt's collection there is a single fragment which would seem to indicate a Crustacean different from the Trilobites, and probably of higher type. It occurred in bed (e), and must await the discovery of additional Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfec
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Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
