Dr. Feistmantel — Bohemian Coal Fauna and Passage-Beds. 113 
Here in the Kladno-Rakonitz Coal-basin the Gas-coal lies tkerefore 
above the Coal-seam. The shale above the Gas-coal, however, con- 
tains again a Flora which is very distinctly Carboniferous. 
I enumerated it already on various occasions. 1 I will especially 
note — Calamites Suckowi, Brong. ; Asterophyllites, Splienophyllum, 
Cyatlieites, Aletliopteris, Caulopteris peltigera, Brong. ; 2 Lycopodites 
selaginoides, Stbg. ; Lepidodendron dicliotomum, Stbg. ; Sigillaria 
alternans, L. & H. ; S. Cortei, Stigmaria ficoides, etc. All these 
occur therefore above the Permian Fauna, and no Permian plants 
amongst them. 
b. The Eed Sandstone Formation. 
Above this Upper Coal-seam, with the Gas-coal on top, we find 
the real Permian Series partly exposed near Rakonitz, but especially 
more to the north, near Klobuk and Perutz, where they dip under 
Cretaceous beds, and extend to the valley of the Eger river, between 
Posteiberg and Budin, as they are seen in that region on the right 
shore of that river. In this series we have again the Permian 
Araucarites stems in abundance, as in the Pilsen Basin and in the 
truly Permian strata in N.E. Bohemia, on the S.W. side of the 
Riesengebirge. 
From near Klobuk we know Calamites gigas, Brong., and Walchia 
piniformis, Stbg., etc. The sequence of the beds in this Coal-field 
is, therefore, generally the following : 
1. Red Sandstones — With Araucarites, Calamites and Walchia. 
2. Upper Coal-seam 
District. 
1 Shales with Carboniferous Flora. 
■[ Gas-coal (Schwarte), with Permian Fauna only. 
( The Coal-seam. 
/ Shales with Carboniferous Flora and Scorpio. 
3. Lower Coal-seam \ Coal-seam. 
District. j Clay-band with Carboniferous Flora. 
\ Coal-seam. 
If we now compare both these basins (Pilsen and Kladno-Rakonitz) 
we shall observe : 
1. The group of Red Sandstones in the Kladno-Rakonitz basiu is 
equal to the same group in the Pilsen basin, with the beds near 
Ledec and Zilow. 
2. The Rakonitz-Schlan Gas-coal is rather higher in the series 
than the Gas-coal at Nürschan, though both contain some genera of 
animals in common ; the Flora being, however, much more abundant 
near Nürschan than near Rakonitz, seems to indicate a slow ex- 
tinction of it towards this latter place ; but this Rakonitz Gas-coal 
was, even by Dionys Stur, acknowledged as Permian in his mis- 
leading paper on that subiect in Verh. d. k. k. geol. Reichsanstalt, 
Wien, 1874, p. 194. 
3. The lower seam in the Pilsen basin is of the same horizon, as 
in the Kladno-Rakonitz basin. 
This we may perhaps explain in the following way : 
1 Ahhandl. d. K. böhm. Gesellsch. d. Wissenschaften, 1873-4; Jahrb. d. k. k. 
Geol. Reichsanst. 1874. 
2 Figured in Yerstein. d. böhm. Kohlenahlagerungen (Feistmantel), pl. xxir. 
DECADE II. — VOL. IV.— NO. III. 8 
