Rather rare in Europe; occurs in Texas and Okla- 
homa. 
Related species: 
Taenwpteris shansiensis Halle 
1927 in Pal. Sinica. v. 2. p. 158. pl. 40. figs. 1-4. 
Taeniopteris nystroemu Halle 
1927 in Pal. Sinica. v. 2. p. 148. pl. 39. 
Taeniopteris latecostata Halle 
1927 in Pal. Sinica. v. 2. p. 145. pl. 88. figs. 1-6. 
Taeniopteris fallax Goeppert 
1864 Foss. Fl. Perm. Form. p. 1380. pl. 9. fig. 3. 
Rare in Europe 
Related species: 
Taeniopteris densissima Halle 
1927 in Pal. Sinica. v. 2. p. 156. pl. 41. figs. 5-7. 
Halle considers ‘* T'aeniopteris’” smith Lesquereux 
to be a relative of 7°. fallaw. It is really a Mega- 
lopteris. 
Several other satisfactory species are known and 
these are cited tor comparison. None of them are known 
to have close American affiliates. 
Taenwopteris schenki Sterzel in Neues Jahrb. Min. 
47 (1876) 882. pl. 5. fig. 6, 6a. 
Taeniopteris Zeilleri P. Bertrand in Ann. Soe. geol. 
Nord, 39 (1910) 3538. pl. 4. fig. 1-5. 
Taeniopteris norini Halle in Pal. Sinica 2 (1927) 
157. pl. 41. fig. 8, 9. 
Taeniopteris serrulata Halle in Pal. Sinica 2 (1927) 
160. pl. 42. fig. 18-18. 
Taeniopteris (2) serrata Halle in Pal. Sinica 2 (1927) 
161. pl. 42. fig. 1-12. 
I have intentionally disregarded several records of 
Taeniopteris based upon fragmentary specimens which 
[145 ] 
