Palaeontographical Society Monographs Volume 44, Nos. 208-212

Palaeontographical Society Monographs Volume 44, Nos. 208-212

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1891 edition. Excerpt: ...must fall into the synonymy." It seems to me that this is what must happen at present. If, however, the smaller specimen figured--which is Reinecke's c0stuIa--should prove not to be the young of the larger specimen--which is certainly Dr. Haug's " Munieri,"--then the latter name may stand. Very different are the species which have been identified with Reinecke's Am. costula. As the chief of them I may notice the following: 1849. AM. BADIANB COSTULA, Quenetedt. Ceph., pl. vii, fig. 11. 1858.---AALENBIS COBTULA, Quenstedt. Der J ura, pl. xl, fig. 11 (the same as above). 1874.--COBTULA, Dumortior. (See Hudleatonia Sinon, p. 227.) 1878. Lunwmm COBTULA, Boyle. Explic. carte geol. France, pl. lxxix, fig. 5; a Gram-moceras closely allied to Gramm. perhaps G. diatom, p. 196. 1885. Amuomms COBTULA, Quemtedt. Amm. Schwabischen Jura, pl. liv, figs. 7--9 and 49, see Grarmn. costulatum, p. 197; figs. 10--14 probably belong to this species; fig 50, see Dmn. cub wndulata. 1886. Hxnrocsnas COSTULA, Vacek. O01. Cap San Vigilio; Abh. k. k. geol. Reichsanstalt, Bd. xii, No. 3. The young of this specie are very similar to Bayle's costula, but the adult form seems to indicate that the species belongs to Harpoceraa, ceneu stricto. The small specimen figured is not unlike Gramm. distans (Pl. XXXIII, figs. 1, 2; see p. 196), but differs by its more gibbous whorls, its more distant, more direct ribs less ventrally-projected. These are just the points in which it agrees with Reinecke's Am. cost-ula. 1 'Ceph., ' pl. vii. 5' " Harp0eeras," 'Neues Jahrbuch fir Mineral., &c., ' 1885, Beil.-Bd. iii, p. 664. From Dam. Levesguei this species difiers in having more

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  • Paperback | 108 pages
  • 189 x 246 x 6mm | 209g
  • United States
  • English
  • black & white illustrations
  • 1236738276
  • 9781236738271