BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 1073 



PtHodictya plumaria James. 



Ptilodictya plumaria James, Paleontologist, No. 1, 1878, p. 4. Ulrich, Jour. 



Cincinnati Soc. Nat. Hist., 5, 1882, pi. 7, figs. 1, la. Bassler, Proc. U. S. 



Nat. Mus., 30, 1906, p. 51. Cumings, 32d Ann. Rep. Dep. Geol. Nat. Res. 



Indiana, 1908, p. 874, pi. 24, fig. 1; pi. 32, fig. 6. 

 Richmond (Whitewater): Waynesville and Oxford, Ohio. 



PTILODICTYA PONDEROSA Ulrich. See Escharopora ponderosa. 

 PTILODICTYA? PUNCTATA Nicholson and Hinde. See Phsenopora punctata. 

 PTILODICTYA RAMOSA Emmons. See Stictopora? ramosa. 

 PTILODICTYA RAMOSA Ulrich 1 . See Escharopora ramosa. 

 PTILODICTYA RARIPORA Nicholson. See Nematopora raripora. 

 PTILODICTYA RECTA Emmons. See Escharopora recta. 

 PTILODICTYA RUDIS Foerste. See Pachydictya craaaa. 

 PTILODICTYA RUSTICA Billings. See Pachydictya crassa. 

 PTILODICTYA SHAFFERI Nicholson. See Arthropora shafferi. 

 PTILODICTYA SUBRECTA Ulrich. See Escharopora subrecta. 



Ptilodictya sulcata Billings. 



Ptilodictya sulcata Billings, Cat. Sil. Foss. Anticosti, 1866, p. 35. 

 Anticostian (Jupiter River): The Jumpers, etc., Anticosti. 



PTILODICTYA SUPERBA Billings. See Phsenopora superba. 



Ptilodictya symmetra Safford. Not recognized. 



Ptilodictya symmetra Safford, Geol. Tennessee, 1869, p. 286 (nom. nud.). 

 Stones River: Central Tennessee. 



Ptilodictya tenella Ulrich and Bassler. 



Ptilodictya tenella Ulrich and Bassler, Maryland Geol. Surv., Low. Dev., 1913, 



p. 288, pi. 42, fig. 10; pi. 48, figs. 7, 8. 

 Helderbergian (Keyser): Cumberland, Maryland. 

 Cotypes.C&t. No. 60744, U.S.N.M. 



PTILODICTYA TENERA Billings. See Pachydictya crassa. 

 PTILODICTYA TERES James. See Ptilodictya nodosa. 

 PTILODICTYA VARIABILIS Ulrich. See Ptilodictya nodosa. 

 PTILODICTYA WELSHI James. See Phsenopora multifida. 



Ptilodictya whiteavesi Ulrich. 



Ptilodictya Whiteavesii Ulrich, Contr. Micro-Pal. Cambro-Sil., pt. 2, 1889, p. 44, 



pi. 8, figs. 1-le. Whiteaves, Pal. Foss., 3, 1895, p. 118. 

 Richmond: Stony Mountain, Manitoba (Stony Mountain); Island of Anticosti 



(Charleton). 

 Figured sections of cotypes Cat. No. 43476, U.S.N.M. 



Ptilodictya whitfleldi Foerste. 



Ptilodictya Whitfieldi Foerste, Geol. Surv. Ohio, 7, 1895, p. 598, pi. 36, fig. 4; pi. 



28, fig. 5. 

 Upper Medinan (Brassfield): Todds Fork, Clinton County, Ohio. 



