. Bulletin - United States National Museum. Science. Fig. 50.—CALYPTOcR.'iPTus MICRONEMATODES SPEN- CER. PLESIOTYPE Spencer collection CALYPTOGRAPTUS ? RADIATUS Spencer. Calyptograptns ? radiatus Spencer, Canadian Nat., X. 1882, p. 1(55, nomen nudum; Trans, Acad. Sci. St. Louis, IV, 1884, pp. 564, .580, pi. 4, fig. 3; Bull. Mus. Univ. State Missouri, I, 1884, pp. 14, 30, pi. 4, fig. 3. Calyptograpsus radiatus Gurley, Journ. Geol., IV, 1896, pp. 93, 308. The original description is as follows: Frond ellipsoid, but cyathiform in its growing state. Numerous delicate branches, with two or thre
. Bulletin - United States National Museum. Science. Fig. 50.—CALYPTOcR.'iPTus MICRONEMATODES SPEN- CER. PLESIOTYPE Spencer collection CALYPTOGRAPTUS ? RADIATUS Spencer. Calyptograptns ? radiatus Spencer, Canadian Nat., X. 1882, p. 1(55, nomen nudum; Trans, Acad. Sci. St. Louis, IV, 1884, pp. 564, .580, pi. 4, fig. 3; Bull. Mus. Univ. State Missouri, I, 1884, pp. 14, 30, pi. 4, fig. 3. Calyptograpsus radiatus Gurley, Journ. Geol., IV, 1896, pp. 93, 308. The original description is as follows: Frond ellipsoid, but cyathiform in its growing state. Numerous delicate branches, with two or three bifurcations, radiating from a common i-adicle. Some of these touch or overlie each other, but they are quite unconnected. The te.\ture is corneous, with the surface striated and marked with minute depres- sions or pits, which indicate the former position of the cel- lule. These depressions are about the fourth of a millimeter in diameter, with an equal space between. The branches are about one-third of a millimeter broad. The greatest diame- ter of the frond is less than 3 cm. Fragments of this species so resemble species of CalJograptus that they could not be readily distinguished; but in no si)eeies of the latter genus is the conspicuous funnel form apparent. Formation and locality.—This fossil occurs in the " cherty beds" of the Niagara dolomite at Hamilton, Fig. .51.—I'ALYPTo- ? RADI- Spencer. Copy of Spen- CER'.S FIGURE. Subgenus RHIZOGRAPTTJS Spencer. RhizograpsuR Spencer, Canadian Nat., VIII, 1878, p. 460.—Gurley, Jonm. Geol., IV, 1896. pp. 101, 308. Rhizograptus Lapworth, Quart. Journ. Geol. Soc. London, XXXVII, 1881, p. 176.—Spencer, Proc. Amer. Ass. Adv. XXXI, 1883, p. 364; Trans. Acad. Sci. St. Louis, IV, 1884. pp. 562, 580; Bull. Mus. Univ. State Missouri, I, 1884, p. 30.—Miller, North Amer. Geol. and Pal., 1889, p. Please note that these images are extracted from scanned page images that may have been di
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