516 NEW YORK STATE MUSEUM 



Upper Helderberg group (continued) 



Hall & Simpson. Corals and Bryozoa of the Upper Helderberg Group.. 



Pal. N. Y. 1887. 6:69-174. pl.24-54. 

 Hall & Clarke. Trilobites and Other Crustacea of the Oriskauy, Upper 



Helderberg, Hamilton, Portage, Chemung and Catskill Groups. Pal.. 



N. Y. 1888. v.7. 236p. 46pl. 



Lincklaen. Upper Helderberg Limestones; Fossils. Mus. rep. 14 (for- 



1860) 1861. p.60-65. 

 Lincoln. Upper Helderberg Group of Seneca County. Geol. rep. 14 (for 



1894) 1895. p.87-92, 102. Same, Mus. rep. 48 (for 1894) 1895. 2:87-92, 102. 

 Luther. Upper Helderberg Group of Onondaga County. Geol. rep. 15- 



(for 1895) 1897. p.275-79. Same, Mus. rep. 49 (for 1895) 1898. 2:275-79. 

 Merrill. Upper Helderberg or Corniferous Limestone. Mus. bul. 19. 1898.. 



p.160. Same, Mus. rep. 51 (for 1897) 1899. 1:160. 

 Smock. Upper Helderberg Group. Mus. bul. 3. 1888. p.22; 10. 1890. 



p.212-13. 



revised by Merrill. Mus. bul. 15. 1895. p.428. Same, Mus. rep.. 



48 (for 1894) 1895. 1:428 (2d paging). 



revised by Merrill. Mus. bul. 19. 1898. p.202. Same, Mus. rep.. 



51 (for 1897) 1899. 1:202. 

 Smock. Quarries. iMus. bul. 3. 1888. p.94-134; 10. 1890. p.238-55. 



revised by Merrill. Mus. bul. 15. 1895. p.432-47. Same, Mus. 



rep. 48 (for 1894) 1895. 1:432-47 (2d paging). 



See also Corniferous limestone; Onondaga limestone; Seneca limestone.. 

 Upper Pentamerus limestone, see Becraft limestone; Pentamerus lime- 

 stone; Scutella limestone. 

 Upper Secondary system. Mather. Upper Secondary System. Geol. N. Y. 



ptl. 1843. p.24S-94. 



Upper shaly limestone. Darton. Upper Shaly Limestone of Ulster 

 County. Geol. rep. 13 (for 1893) 1894. p.303-4. Same, Mus. rep. 47 (for 

 1893) 1894. p.497-98. 

 Hies. Upper Shaly Limestone of Ulster County. Geol. rep. 17 (for 1897> 



1899. p.456. -Same, Mus. rep. 51 (for 1897) 1890. 2:456. 



Upper Silurian. Clarke, Ruedemann & Luther. Contact Lines of. Upper 

 Siluric Formations on the Brockport and Medina Quadrangles. Mus. 

 bul. 52. 1902. p.517-23. 



Hall. Organic Remains. Pal. N. Y. v.2. 1852. 

 Merrill. Upper Silurian System. Mus, bul. 19. 1898. p.150-58. Same r 



Mus. rep. 51 (for 1897) 1899. 1 :150-58. 

 Merrill. Life of the Upper Silurian. Mus. bul. 19. 1898. p.158. Same,. 



Mus. rep. 51 (for 1897) 1899. 1:158. 

 See also names of subdivisions; also names of classes of fossils, i. e. 



Brachiopoda, Cephalopoda, etc. 

 Uraninite. Beck. Uranite. Min. N. Y. 1842. p.456. 



Whitlock. Uraninite. Mus. bul. 58. 1902, p.123. 



Utica. Smock. Stone Construction in. Mus. bul. 10. 1890. p.333-36. 

 Utica shale (Black shale). Beecher. List of Species of Fossils from an 

 Exposure of the Utica Slate and Associated Rocks in the Limits of 

 Albany, N. Y. Mus. rep. 36 (for 1882) 1883. p.78. 

 Clarke & Schuchert. Utica Shale. See New York series. 

 Conrad. Blue Fetid Limestones and Shales of Trenton Falls. Geol. rep. 



3d dist. (for 1836) 1837. p.163-64 (ed.2, p.165-66). 

 Cumings. Historical Sketch. Mus. bul. 34. 1900. p.426-28. Same, Mus. 



rep. 54 (for 1900) 1902. 1:426-28. 



Cushing. Utica Slate of Clinton County. Geol. rep. 15 (for 1895) 1897. 

 p.515-73. Same, Mus. rep. 49 (for 1895.) 1898. 2:515-73. 



