﻿.112 Dr. Feistmantel — Bohemian Coal Fauna and Passage-Beds. 



Mining is cai'riecl on there to a great extent, and there are several 

 localities where fossils can be got. The fossils throughout are plants 

 of Carboniferous character ; and some remains of a Scorpion were 

 procured, which were ranged by Dr. Fritsch with Cycloplithalmus 

 senior, Corda.^ 



Of the plant remains, I described those from Kralup in a special 

 paper,* and the others 1 enumerated in my general paper on the Coal- 

 basin." 



All orders of Carboniferous plants are represented, and some Clay- 

 bands in the Coal-seam are especially rich in plants. 



For the comparison of this seam with others in Bohemia, the 

 abundant occurrence of the genus Noggeratlrla is very useful ; * 

 two species are found : Noggerathia foliosa, Stbg., and Noggerathia 

 intermedia, K. Feistm. This species, however, Mr. Stur, of Vienna, 

 considers as belonging to the genus Bhacopteris, Schimp. Cer- 

 tainly these forms have nothing in common, and this Nogg. inter- 

 media, K. Feistm., at Eakonitz, is a true Noggerathia. Besides the 

 foliage, there occurred also a fruit of Noggerathia, which I called 

 NoggeratMaestrobus hohemicus, 0. Feistm. 



The Upper Coal-seam District. 



This overlies conformably the Lower Coal-seam District, extends 

 in a northern directicm, and is especially developed in the neighbour- 

 hood of Kakonitz, near the Zbanberg at the villages Mutiowitz, 

 Kounowa, Hredl, etc., and in the neighbourhood of Sehlan, at Stern, 

 Libowitz, Lotausch, etc. 



The Coal-seam in this district is only about 1^ metres thick, but is 

 immediately overlain by the Gas-coal, about 8 to 11 cm. thick, locally 

 called Schwarte ; above this we again find shales. 



The Gas-coal here is of the same importance as the Nlirschan Gas- 

 coal in the Pilsen Basin ; it contains the animal-remains. These were 

 very distinctly mentioned already by Messrs. Keuss ^ and Lipoid ^ in 

 their papers on the geological relations of these Coal-basins ; they 

 are, as far as at present known : Ctenoptychius brevis, Ess. ; Desmodus, 

 sp. ; Falceoniscus Vratislaviensis, Ag. ; Acanthodes gracilis, Eom. ; 

 Xenacanthus Decheni, Beyr. ; Diplodus ; Pygopterus, sp., etc. 



From this both Eeuss and Lipoid drew the conclusion that this 

 Gas-coal should be considered as Permian, and also Dionys Stur 

 regards this Gas-coal (his Kounowa Series), as being of Permian age, 

 while the Niirschan Gas-coal, containing many more forms of that 

 kind, he puts down as the lowest portion of the Carboniferous.' 



1 Archiv fiir naturh. Durchforschung von Bohmen, 1873, II. Bd. 2 Abth. 



* Steinkolilenflora von Kralup, 1874, Abhandl. d. k. bohm. gesellsch. d. "Wissensch. 

 4 Tafeln. 



3 Steinkoh'len und Permablagerungen N. W. von Prag, 1874, Abb. d. k. bohm. 

 Gesellsch. d. Wissensch. II. Tafeln. 



* This I first pointed out in my papers ; all other opinions about it are subsequent. 



5 Sitzungsb. d. k. Acad. d. Wissensch. Wien, 1858. 



6 Jahrb. d. k. k. Geolog. Reichsanstalt, 1861-62. 



7 It is certainly not uninteresting that only lately a Ceratodus has been procured 

 from these beds. 



