540 



PTERIDOSPERMS, ETC. 



[CH. 



Szajnocha and by Solms-Laubach ^ for Rhaetic specimens from 

 South America. Similar fronds are described byGeinitz^" as 

 Thinnfeldia tenuinervis from Argentine Rhaetic strata. 

 Odontopteris macrophylla Curran, T. falcata Ten.-Woods, Glei- 

 chenia lineata Ten.-Woods, and Cardiopteris Zuberi Szaj. 

 afford other examples of what are probably closely allied forms'. 



.<^s^1 



Fio. 357. Thinnfeldia odontopteroides (Morris). ^ nat. size. 



Some exceptionally large examples of T. odontopteroides are 

 figured by FeistmanteP from the Hawkesbury series of New 

 South Wales in which the bipinnate frond has a breadth of 



1 Solms-Laubaoli and Steinmann (99) PI. xiv. fig. 2 ; Szajnocha (88). 



2 Geinitz (76) PI. i. » Seward (08) p. 95. ■> Feistmantel (90) A. PI. xxiv. 



