des Muschelkalks bei Jena. 



101 



Arten 



Roth 



SO 



a b bl 



Unterer Muschelkalk 



Oberer 

 Muschelkalk 



mu 1 



moi 



mo2 



Terebratula angusta var. Ostheimen 

 sis Peösch 



Lingula tenuissirna Br. 

 Spiriferina fragilis v. Buch 

 » hirsuta v. Alb. 



Retzia trigonella v. Sohl, sp 

 Discina discoides v. Schl. sp. 



Pelecypoden. 

 Ostrea complicata Goldf. 

 » spondyloides v. Schl. 

 » decemcostata Goldf. . 

 » multicostata Goldf. 

 » difformis Goldf. . . 



+ 



» ostracina v. Schl. sp. 

 mia alta Gieb. . . . 



Ano- 



Ostrea exigua Dusker 



Anomia beryx Gieb 



Pecten reticulatus v. Schl. sp. . . 



» discites Br. = P. tenuistri- 

 atus Goldf 



Pecten laevigatus Br 



Monotis Albertii Goldf 



Hinnites comtus Gieb 



Lima costata Goldf 



» striata v. Alb 



ra- 



» lineata Goldf. (incl. L. 

 diata Goldf.) 



Lima Beyrichi Eck 



Gervillia socialis v. Schl. (incl. G. 

 jenensis Passarge) 



Gervillia costata Quenst 



» subglobosa Crdr. . . . 



» subcostata Goldf. sp. 



» substriata Crdr 



Gervillia mytiloides v. Schl. . . 

 Lithodomus priscus Gieb. sp. . . 



4- 



+ 



+ 



+ 



+ 



+ 



+? 



+ 



+ 



+ 



+ 



+ 



+ 



+ 



+ 



+ 



+ 



+ 



+ 



+ 



+ 



+ 



+ 



+ 



+ 



+ 



+ 

 + 



+ 



+ 



+ 



+ 

 + 



+ 



+ 



+ 

 + 

 + 

 + 



+ 

 + 



+ 



+ 



4- 



+ 

 -I- 

 + 

 + 



+ 

 + 



+ 



+ 

 + 



+ 



+ 



+ ? 



