WEST VIRGINIA GEOLOGICAL SURVEY 405 



PECOPTERIS OREOPTERIDIA (Schlotheim) Sternberg. 



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

 Bull. Geol. Soc. Am., vol. n, 1900, p. 170. Fontaine & I. C. 

 White: Second Geol. Surv. Pa., Kept. Progr. PP, 1880, p. 

 64. [Dunkard formation (Permian).] [Allegheny and 

 Conemaugh formations.] 

 PECOPTERIS RARINERVIS Fontaine & I. C. White. 



Second Geol. Surv. Pa., Kept. Progr. PP, 1880, p. 71, pi. 

 xx, figs. 6, 7, 8. [Dunkard formation (Permian).] 

 PECOPTERIS IMBRICATA Fontaine & I. C. White. 



Second Geol. Surv. Pa., Kept. Progr. PP, 1880, p. 72, pi. 

 xxiii, fig. i. [Dunkard formation (Permian).] 

 PECOPTERIS IMBRICATA Fontaine & I. C. White. 



Second Geol. Surv. Pa., Rept. Progr. PP, 1880, p. 72, pi. 

 xxiii, fig. i. [Dunkard formation (Permian).] 

 PECOPTERIS PLATYNERVIS Fontaine & I. C. White. 



Second Geol. Surv. Pa., Rept. Progr. PP, 1880, p. 73, pi. 

 xviii, figs. 1-6. [Dunkard formation (Permian).] 

 PECOPTERIS ASPLENIOIDES Fontaine & I. C. White. 



Second Geol. Surv. Pa., Rept. Progr. PP, 1880, p. 72, pi. 

 xxv, fig. i. [Dunkard formation (Permian).] 

 PECOPTERIS ROTUNDILOBA Fontaine & I. C. White. 



Second Geol. Surv. Pa., Rept. Progr. PP, 1880, p. 74, pi. 

 xvii, fig. 2. [Dunkard formation (Permian).] 

 PECOPTERIS ANGUSTIPINNA Fontaine & I. C. White. 



Second Geol. Surv. Pa., Rept. Progr. PP, 1880, p. 76, pi. 

 xxvii, figs. 1-3. [Dunkard formation (Permian).] 

 PECOPTERIS TENUINERVIS Fontaine & I. C. White. 



Second Geol. Surv. Pa., Rept. Progr. PP, 1880, p. 77, pi. 

 xxviii, figs. 1-4. [Dunkard formation (Permian).] 

 PECOPTERIS SUB-FALCATA Fontaine & I. C. White. 



Second Geol. Surv. Pa., Rept. Progr. PP, 1880, p. 70, pi. 

 xxi, figs. 1-2. [Dunkard formation (Permian).] 

 PECOPTERIS HEERIANA Fontaine & I. C. White. 



Second Geol. Surv. Pa., Rept. Progr. PP, 1880, p. 77, pi. 

 xxv, figs. 3-7. [Dunkard formation (Permian).] 

 PECOPTERIS SCHIMPERIANA Fontaine & I. C. White. 



Second Geol. Surv. Pa., Rept. Progr. PP, 1880, p. 75, pi. 

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

 PECOPTERIS LANCEOLATA Fontaine & I. C. White. 



Second Geol. Surv. Pa., Rept. Progr. PP, 1880, p. 79, pi. 

 xxix, figs. 7, 8, 9. [Dunkard formation (Permian).] 

 PECOPTERIS INCLINATA Fontaine & I. C. White. 



Second Geol. Surv. Pa., Rept. Progr. PP, 1880, p. 80, pi. 

 xxix, fig. 4. [Dunkard formation (Permian).] 



