WEST VIRGINIA GEOLOGICAL SURVEY 4O7 



Pecopteris elliptica Bunbury, 



Quart. Joiir. Geol. Sec. London, vol. 2, 1845, P- 84, pi. vii. 

 Fontaine & I. C. White : Second Geol. Surv. Pa., Rept. Progr. 

 PP, 1880, p. 64, pi. xvii, fig. I. [Dunkard formation (Per- 

 mian).] 

 Pecopteris {CaUiptcridinui) crandifolia (Fontaine &. I. C. 

 White) D. White. 



Second Geol. Surv. Pa., Rept. Progr. PP, 1880, p. 58, pi. 



XV, figs. 1-4; pi. xvi, .figs. 2-4. D. White: Bull. Geol. Soc. 



Am., vol. 14, 1904, p. 540. [Dunkard formation (Permian).] 



Pecopteris (Callipteridium) oulongifolia (Fontaine & I. C. 



White) D. White. 



Second Geol. Surv. Pa., Rept. Progr. PP, 1880, p. 56, pi. 

 xii, figs. 1-5 .[Dunkard formation (Permian).] 

 Pecopteris {Calliptcridiuui) odontopteroides (Fontaine & I. C. 

 White) D. White. 



Second Geol. Surv. Pa., Rept. Progr. PP, 1880, p. 59, pi. 

 xvi, fig. I. D. White: Bull. Geol. Soc. Am., vol. 14, 1904, p. 

 539. [Dunkard formation (Permian).] 

 Pecopteris {Callipteridium) unita (Fontaine & L C. White) 

 D. White. 



Second Geol. Surv. Pa., Rept. Progr. PP, 1880, p. 60, pi. 

 xiv, figs. 2, 3. [Dunkard formation (Permian).] 

 Pecopteris {CaUiptcridinui) Dawsonianiana (Fontaine & I. C. 

 White) D. White. 



Second Geol. Surv. Pa., Rept. Progr. PP, 1880, p. 56, pi. 

 xiii, figs. 1-2; pi. xiv, fig. i. D. White: Bull. Geol. Soc. Am., 

 vol. 14, 1904, p. 539- [Dunkard formation (Permian).] 

 Pecopteris sp. D. White. 



Bull. Geol. Soc. Am., vol. 11, 1900, p. 172. [Conemaugh 

 formation). 

 Alethopteris decurrens (Artis) Sternberg. 



Flora, Regensburg, vol. i, 1827, p. 138. D. White: Bull. 

 Geol. Soc. Am., vol. 11, 1900, p. 161. [Pottsville group, 

 Kanawha formation.] Characteristic of the middle and 

 upper Pottsville. 

 Alethopteris aouilina (Schlotheim) Goeppert. 



Nov. Acta Acad. Caes. Leop. Car., vol. 17, Suppl. (Syst. 

 Fil. Foss.), 1836, p. 298. Lacoe in IMillspaugh : Bull. No. 

 24, W. Va. Agric. Exp. Sta., Morgantown, 1892, p. 519. 

 [Conemaugh formation.] 

 Alethopteris lonchitica (Schlotheim) Sternberg, 



Flora d. Vorwelt (Tentamen), 1825, p. xxi. D. White: 

 Bull. Geol. Soc. Am., vol. 11, 1900, p. 163. [Pottsville group; 

 Sewell ? and Kanawha formation] . 



Characteristic of the upper Pottsville. The typical form is 

 unknown in the Allegheny or later beds. 



