T. Davidson — Continental Geology. 



261 



appears to him also that the Upper Chalk of England and of the 

 north of Germany exhibit a close similarity even in their details. 

 That probably the same sea that deposited their Planer extended 

 directly "into England. Moreover, that in Germany the red Planer 

 (zone with Inoceramus mytiloides) forms in the great mass of Lime- 

 stone a band which can be easily recognized, and he enquires whether 

 we have not that Eed Limestone in England ? 



Classification of the Cretaceous System in North -Western Germany, 

 By Herrn a. Von Strombeck. April, 1869. 



Zone of Belemnitella mu- 



White Chalk of Riigen. 



Chalk Marl : Luneburg (in part), Duttenstedt, 



near Brunswick. 

 Sandy Marl : Ahlten, near Lehrte, Haldem. 



Zone of Belemnitella quad- 

 rat a. 



Marl : Northern margin of the Harz (Ilsenburg, 

 Salzbiu-g, near Quedlinbui-g,) Luisberg, near 

 Aarhen. 



Conglomerate of the Sudmerbergs near Goslar. 



Subherrynian, near Upper Quader : Blankenburg. 



o 



• o 



Zone of Inoceramus Cu- 



vieri. 



Zone of Scaphiles Geinitzi. 



Upper Planer : Steinlahe, near Salzgitter, North- 

 wards from Pavilion, near Heiningen, not far 

 from Wolfenbiitter. 



Upper Planer : Southwards from the Pavilion, 

 near Heiningen, Brackwede, near Bielefeld, 

 Strehlen, near Dresden. 



Q3 



Zone oi Inoceramus Brong 

 narti, in the upper part, 

 full of Holaster planus, 

 (Facies: Beds with Ga- 

 lerites conica.) 



White Middle Planer : Widely distributed in the 

 neighbourhood of Salzgitter and in the Teuto- 

 burger Walde. 



Galerite-beds : Pleischercamp, near Salzgitter, 

 Aahaus, in Westphalia. 



Zone of Inoceramus my- 

 tiloides {lahiatus). 



Eed Middle Planer : Leibenburg, near Salzgitter. 

 Lower Grey Marl on the Ruhr in Westphalia. 



Zone of Ammonites Rho- 

 thomaffensis. 



Lower Planer : Langelsheim, near Goslar. 



6'^ 



Zone of Ammonites va 

 rians {Scaphites oequalis) 



Lower Planer : Neighbourhood of Salzgitter. 



Zone of Terebratula torn- 

 acensis. 



Tourtia-Essen in Westphalia, Northern Margin 

 of the Harz. 



Zone of Ammonites injlatus. 



" Flammenmergel : " widely disti-ibuted in the 

 North of the Harz and in the Teutoburger 



Walde. 



o- 



Zone of Belemnites mini- 

 mtis. 



Clay ; Eilum, near Schoppenstedt. 



Zone of Ammonites tarde- 

 furcatus. 



Clay : Quitzern, near 

 Querum. 



Zone of Ammonites Mil- 

 let iatms. 



Clay : Vohrum, near 

 Peine. 



Sub-Hercynian Lower 

 Quader (in part) be- 

 tween Halberstadt and 

 Blankenburg - Dellig- 

 sen in the Hills. 



