16 GEOLOGICAL MEMOIRS. 



period, the diminution of wald mammalian species, by the action of 

 man and the general use of fire-arms, is continnously progressing. 



[Count M.] 



On Paleozoic Strata in Kfssian Poland. 

 By MM. F. KoEMEPv and Degenhart. 



[Proceed. Imp. Geol. Inst. Vienna, April 2, 1867.] 



The central monntain-group of Eussian Poland spreads between 

 Sandomir and Malagoszcz, with a length of about 18 and a breadth 

 of from 2 to 3 German miles. The Devonian deposits represented 

 in this group follow thus in descending order : — 



1. Black bituminous limestones and calcareous marls, with Posi- 

 donomya (?) venusta, Gypridina sen'ato -striata, Phacops crypto- 

 phthalmus, and Goniatites retrorsus. 



2. Light-green coralliferous limestone, with Galamopora ce7'vi- 

 cornis, Alveolites suhorhicidans, Stromatopora polymorpha, Atrypa 

 reticularis, RhyncJionella acuminata, Bronteus jlahellifer, &c. 



3. Brownish-grey sandstones near Kielce, with OrtJiis Kielciensis, 

 Room. 



4. Dark-coloured marly shales in the iron-mines of Dabrowa, 

 near Kielce, with Spirifer ostiolatus. 



5. Dark-coloured sandstones, purple marl-shales, and beds of 

 compact dark-grey hmestoues, with Orth'is lunaris, Atrypa reticu- 

 laris, Pentamerus galeatus, Strophomena depressa, &c. 



6. Quartzites of Lysagora, without organic remains. 



The first division evidently represents the uppermost Devonian 

 horizon, as the fifth division represents the middle one. The Per- 

 mians are represented about 1^ mile north-east of Kielce by genuine 

 " Zechstein," with Productus horridus ; this is the extreme easterly 

 termination of the *' Zechstein" deposits of (^'ermany and Lower 

 Silesia. The Trias is conspicuously represented by variegated sand- 

 stones (with Myophoria fallax), by Keuper (Pusch's northern 

 sandstone formation with red clays, abundance of argillaceous 

 Sphserosiderites, some vegetable and occasionally animal remains, 

 extending over an area of more than 50 German square miles), and 

 Muschelkalk. Pecopteris Ottonis, Goepp., (a form frequent in the 

 Keuper of Upper Silesia) has been met with again in the Keuper 

 of Miedzieczo. 



[Count M.] 



