the Muschelkalk, Sfc. '331 



These impressions have never presented me the singular 



fignres which characterize the plants of the coal measures; 



-on the contrary, both woods and plants appeared to me 



much more analogous to the actual European vegetatioa 



than to the plants of the coal measures. 



Well preserved impressions are very rare, caused pro- 

 bably by the want of the fine coal measure clays, and by the 

 different origin of the deposite ; yet impresssions of plants 

 may be observed which bear some resemblance to reeds 

 (Luntorf, near Pyrmont), very distinct leaves resembling 

 at a distance those of the hazel and walnut tree, as at Mont 

 Heidelberg near Blankenberg, and at Wulfenbuttel. 1 

 have even seen in the superb cabinet of Baron von Schlot- 

 heim, vegetable impressions resembling palms (palmacites 

 annulatus, canaliculatus, and absoletus, &c. Schl.) and even 

 plants resembling ferns, or of the division lycopodiollthes of 

 M. Schlotheim (L. ccespitosus) (Gotha). The same natu- 

 ralist mentions carpolithes. Marine organic remains are 

 tolerably abundant, especially in some localities and certain 

 beds ; but they are in genera! only casts, and are rarely sili- 

 ceous or chalcedouic petrifactions, as at the Platenberg near 

 Blankenburg. 



The most frequent fossils of this kind would appear to be 

 pectens, (p. punctatus, radiatus, longicollis, anomtilus, 

 Schlot :) ; they are particularly found in some beds of the 

 quadersandstein of Silesia and Piriia. In tlie last locality 

 we also see shells of the genus Venus, oysters (ostrea labiata 

 Knorr) and mytili. 



On the north of the Hartz, the turbinites obvolutus,5'cA/: 

 and regensbergensis, Knor?', have been long known near 

 Blankenberg, as also in the Halberstadt, where it is associ- 

 ated though rarely with ostrsa crista galli. 



Volutae and bullae are mentioned as occurring in the en- 

 virons of Halberstadt, myae (m. musculoides, Schl:) exist in 

 ■the Seeberg, at Gotha. The rare asteria lumbricalis Schl: 

 occurs in nearly the upper strata of the Coburg quadersand- 

 stone (Gossenburg) ; this bed also contains indeterminate 

 bivalves. 



