INTBODirCTION. XXI 



In addition to these there are three species recorded from 

 Langenberg near Quedlinburg ' : — 



Weichselia Ludovicte, Stiehler = W. Mantelli (Brong ) . 

 Fterophyllum Ernestine, Stiehler. 

 Fandcmiis Simildts, Stiehler. 



In a recent communication from Struckmann' on the strata 

 between the "Hilsthon" and "Wealden of North Germany, it 

 is pointed out that in England the brackish water-deposits at 

 the end of the Jurassic period seem to have continued for a 

 longer time than in Worth Germany ; and this author suggests 

 that the Wealden should be regarded not as a distinct formation, 

 but as a facies, consisting of brackish water-deposits at the close 

 of the Jurassic period, and which, in some places, extended to 

 the Chalk. 



ATJSTEIA. 



Ettingshausen in 1852 described a number of fossil plants from 

 Zobing and a few other localities, from beds considered to be of 

 Wealden age ; many of the species being identical with Wealden 

 plants of JSTorthern Germany. The following species are recorded 

 from these plant-bearing beds ^ : — 



Confervites setaceus, Ett. 



Sargassites Partschii, Ett. 



Spharococites chondriaiformis, Ett. 



Equisetites Burchardti, Dunk. 



Cyclopteris squamata^ Ett. 



C Mantelli, Dunk. = ? Sagenopteris 

 Mantelli (Dunk.). 



Sphenopteris Mantelli, Brong. = Ony- 

 chiopsis Mantelli (Brong.) . 



Alethopteris recentior, Ett. = ? Weich- 

 selia Mantelli (Brong.). 



Tceniopteris ZoUngiana, Ett. = ? Frag- 

 ment of Neuropteris. 

 Cycadites Brongniarti, Roem. 

 Fterophyllum Buchianum, Ett. 

 P. nervosum, Ett. 

 Culmites prisons, Ett. 

 Thuites Hoheneggeri, Ett. 

 Araiicarites Dunheri, Ett. 

 A. curvifolius, Ett. 

 Carpolithes Lindleyanus, Dunk. 

 C rostellatus, Ett. 



In 1871 Schenk discusses the plants and geologic age of the 

 Wernsdorfer beds at some length; from an examination of the 

 flora he concludes that these Carpathian rocks are nearer in age 



1 Flor. aubhercyn. Kreid. p. 14. 



2 Jahrh. k. preuss. geol. Landesaust, 1889, p. 54. 



3 Ahh. k.-k. geol. Eeiohs. vol. i. Abth. iii. No. 2, 1852, p. 1. 



