208 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Chaetocladus sardesoni Ruedemann. 



Chaetocladus sardesoni Ruedemann, Bull. New York State Mus., 133, 1909, p. 



204, pi. 2, figs. 3-11. 

 Black River (Platteville) : Minneapolis, Minnesota. 



CH^TOMORPHA Kuntze. A genus of recent marine algae. 



Chsetomorpha?? priina Whitfield. 



Oldhamia fruticosa Hall (part), Canadian Organic Remains, dec. 2, 1865, p. 50. 



Chaetomorpha? prima Whitfield, Bull. Amer. Mus. Nat. Hist., 6, 1894, p. 355, pi. 

 11, figs. 9, 10; Mem. Amer. Mus. Nat, Hist., 1, pt. 2, 1895, pi. 4, figs. 9, 10. 

 Ruedemann, New York State Mus., Bull. 133, 1909, p. 203, figs. 9, 10. 



Black River (Platteville): Platteville, Wisconsin. 



CHALAZODES Parks. See Lophiostronia Nicholson. 

 CHARIONELLA? HYALE Billings. See \Vhitfieldella hyale. 



CHASMATOPORA Eichwald. Genotype: C. tenella Eichwald. 



Retepora as applied by various authors to Ordovician and Silurian anastomosing 



bryozoa (not Lamarck, 1801). 



Gorgonia(?) Hall, Pal. New York, 1, 1847, pp. 16, 76 (not Linnseus, 1745). 

 Intricaria Hall, Pal. New York, 1, 1847, p. 77. Miller and Dyer, Contr. Pal., No. 



2, 1878, p. 7. 



Subretepora D'Orbigny, Prodr. Pal., 1, 1850, p. 22. Miller, N. A. Geol. Pal., 

 1889, p. 326. (See Geol. Surv. Illinois, 8, pp. 683, 687.) 



Chasmatopora Eichwald, Lethaea Rossica, 1, 1860, p. 370. Pocta, Syst. Sil. Centre 

 Boherne, 8, 1894, pt. 1, p. 27. Bassler, Bull. U. S. Nat. Mus., 77, 1911, p. 

 169; Zittel-Eastman Textb. Pal., 1913, p. 340. 



Phyllopora (in part) Ulrich, Jour. Cincinnati Soc. Nat. Hist., 5, 1882, p. 150. 



Nov. gen. (not named) Ulrich, Contr. Amer. Pal., 1, 1886, p. 5. 



Phyllopoiina (Ulrich) Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 150. 

 Ulrich, Geol. Surv. Illinois, 8, 1890, pp. 399, 639; Geol. Minnesota, 2, 1893, 

 p. 208. Pocta, Syst. Sil. Centre Boheme, 8, pt. 1, 1894, p. 17. Ulrich, Zit- 

 tel's Textb. Pal. (Engl. ed.), 1896, p. 283. Nickles and Bassler, Bull. U. S. 

 Geol. Surv., 173, 1900, p. 37. Grabau, Bull. Buffalo Soc. Nat, Sci., 7, 1901, 

 p. 168; Bull. New York State Mus., 45, 1901, p. 168. Bassler, Bull. U. S. 

 Geol. Surv., 292, 1906, p. 48. Grabau and Shinier, N. A. Index Fossils, 1, 

 1907, p. 140. 



Chasmatopora angulata (Hall). 



Retepora angulata Hall, Pal. New York, 2, 1852, p. 49, pi. 19, figs. 3a-h. Hall 



and Whitfield, Pal. Ohio, 2, 1875, p. Ill, pi. 5, figs. 2-4; 12th Ann. Rep. 



Indiana Geol. Nat. Hist., 1882, p. 269, pi. 14, figs. 1, 2. Lesley, Geol. Surv. 



Pennsylvania, Rep. P 4, 1889, p. 861, figs. 

 Phylloporina angulata Foerste, Bull. Sci. Lab. Denison Univ., 2, 1887, p. 151; 



3, 1888, pi. 15, fig. 1; Geol. Surv. Ohio, 7, 1895, p. 600, pi. 28, fig. 1. 

 Subretepora angulata Miller, N. A. Geol. Pal., 1889, p. 326, fig. 523. 

 Retepora daytonensis Hall and Whitfield, Geol. Surv. Ohio, Pal. 2, 1875, p. Ill 



(proposed at end of description). 



Early Silurian: Sodus and Rochester, New York (Clinton); Flamborough Head, 

 etc., Ontario (Cataract); Dayton, etc., Ohio; Kentucky; Tennessee; and 

 Alabama; (Brassfield); West Ellis Bay, Anticosti (Ellis Bay). 



Chasmatopora aspera (Hall). 



Gorgonia? aspera Hall, Pal. New York, 1, 1847, p. 16, pi. 4, figs. 3a, b. 

 Subretepora aspera Miller, N. A. Geol. Pal., 1889, p. 326. 



