Bulletins of American paleontology . North Carolina Geol. Sur.: Emmons 141 232 nokth-cakolina geological survet. Crown only slightly oblique, rather thick, but comparative-ly narrow, but wide at base, and armed with serrated wing-lets, pointing upwards and outwards; the serratures are strong-er than those upon the crown ; roots massive, and sej)aratedby a distinct arch. Figure 5S, a tooth which should probablyreferred to this species, though the arch of the root is flatter. Prof. Gibbs, on the authority of Prof Agassiz, has mergedin the carcharodon angustidens, the following species: C. lan-ce
Bulletins of American paleontology . North Carolina Geol. Sur.: Emmons 141 232 nokth-cakolina geological survet. Crown only slightly oblique, rather thick, but comparative-ly narrow, but wide at base, and armed with serrated wing-lets, pointing upwards and outwards; the serratures are strong-er than those upon the crown ; roots massive, and sej)aratedby a distinct arch. Figure 5S, a tooth which should probablyreferred to this species, though the arch of the root is flatter. Prof. Gibbs, on the authority of Prof Agassiz, has mergedin the carcharodon angustidens, the following species: C. lan-ceolatus, C. heterodon, C. megalotis, C. semi-serratus, C. au-riculatus, C. turgidus, C. semi-serratus, and C. toliapicus, onthe ground that they are insufficiently characterized and notclearly distinguishable from each other. CAKCHARODON TRIANGULxVRIS, N. S. (Fig- 59.) Crown of the tooth rather thin ; the posterior faces of thecrown meeting in the central line at an obtuse angle, but upon Fig. 142 Bulletin 249 NOETH-CAROLINA GEOLOGICAL SURVEY. 238 each side of this hne they are quite flat; enamel thin, serra-tures small, root thick, striated and heavy, with a very lowarch. This tooth scarcely exhibits the usual convexities of eitherface ; the faces being bounded by plane surfaces, the meetingof which give an obtuse angle when obtained by a centralsection through the crown. It belongs to the eocene, and wasobtained from a bed near Xewbern. c. CRAsiT)Ei>[s, N. s. (Fig. 59, a.)Tooth sub-conical, thick, sliglitly oblique ; inner face very convex, outer flat at base, evenly but flatly convex near tlie apex, with an inconsiderableridge extending from thebase to a point near the apex,and somewhat ridged acrossthe whole of the base of theouter face ; serrae, sub-equal,and armed with serrate wingsat base ; root thick and pro-minent on the inside; en-amel extends on the outerface to the root, and is ex-tended continuously over thewings. This tooth belongsto the eocene at AVilmingt
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Keywords: ., bookcentury1800, bookdecade1890, bookidbulletinsofa, bookyear1895
