. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. , ^^ p 32g Dawson. Ac. Geo!. 1868 Dawson. Acadian Geol., 1868, p. 328, f. 137, front of scull seen from beneath, reduced from seven in. wide hy five long, set with strong conical teeth (fig. 137 J, tooth natural size ; f. 141^^, five teeth, natural size, four outer, one inner; 5, section of in- ner tooth magnified; c, skin ^C2i\e, natural size;) found by Dawson, 1850, in ironstone parting of Albion mine coal bed, Pictou, N. S., with abundance of 5i?^^'or5^5,


. A dictionary of the fossils of Pennsylvania and neighboring states named in the reports and catalogues of the survey ... Paleontology. , ^^ p 32g Dawson. Ac. Geo!. 1868 Dawson. Acadian Geol., 1868, p. 328, f. 137, front of scull seen from beneath, reduced from seven in. wide hy five long, set with strong conical teeth (fig. 137 J, tooth natural size ; f. 141^^, five teeth, natural size, four outer, one inner; 5, section of in- ner tooth magnified; c, skin ^C2i\e, natural size;) found by Dawson, 1850, in ironstone parting of Albion mine coal bed, Pictou, N. S., with abundance of 5i?^^'or5^5, large fish scales and teeth, and bony spines, some i in. wide. See Appendix, Barrandia thompsoni. See Olonellus thompsoni. M. C. Barrandia vermontana, 8ee Mesonacis vermontana. Middle Camlrian. Batacanthus baculiformis ? See Appendix. Bathygnathus borealis. Leidy, Proc. Acad. Nat. Sci. Phila. Dawson, Acad. Geol. 1868, p. 119. fig. 29, a reduced copy of Leidy's a, cross section of second tooth, 7iat. size; 5, fifth tooth, nat. size ; part of the jaw of a carnivorous rep- ;G^is6a l^"^ ^ "/ ' tilo, as large as an alligator, (allied to Tliecodontosaurus of the English JSew Red 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 perfectly resemble the original Lesley, J. P. (J. Peter), 1819-1903; Pennsylvania. Board of Commissioners for the Second Geological Survey. Harrisburg, Board of Commissioners for the Geological Survey


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Keywords: ., bookcentury1800, bookdecade1880, booksubjectpaleontology, bookyea