550 C. J. A. Meyer — Chloritic Marl and Upiper Greensand. 



(referred by Barrois to Cbloritic Marl)^ are entirely remanie of older 

 beds. Bed 13 itself is of tbe zone of Belemnites plenus, and is 

 followed immediately by tbe zone of Inoceramus labiatus. Eecent 

 investigation bas proved to me tbat I was wrong tberefore in giving 

 to Holaster subglobosus so wide a range in my tables of fossils.^ In 

 tbe vicinity of Beer Head Holaster subglobosus occurs in places in 

 bed 12. Earely between beds 12 and 13. 



Or, in tbe Beer Head and Branscombe cliffs : — 



Beds 16, 15, 14=The zone of Inoceramus labiatus. 



Bed 13 = The zone of Belemnites plenus. 



Beds 12, 11, 10=Condensed life-zones apparently of: 



Holaster subglobosus, 



Scaphites cequalis. 



Holaster nodulosus. 



Trigonia sulcataria. 



Now the Upper Greensand (typical) of tbe Isle of Wigbt — both 

 Cbert Series and Malm Series — is fully represented in tbe Devon 

 clifis by my beds 6, 5, 4, 3. Beds 8 and 9 not being present in tbe 

 Isle of Wigbt. To separate beds 10, 11, 12 from the Upper Green- 

 sand of the Devon cliffs does not, therefore, in any way diminish tbe 

 original range of the Upper Greensand, as Mr. Jukes Brow'ne 

 apparently supposes.^ 



Moreover, my beds 8 and 9 with Orbitolites concava, and bed 10 

 with Trigonia sulcataria, Godiopsis doma, etc., represent respectively 

 the " Graie de Rouen " and " Gres du Maine," in part, of Prof. 

 Hebert.* And these beds, though widely developed in France, seem 

 absolutely unrepresented in the Isle of Wight. And, inasmuch as 

 the position of beds 8 and 9 is actually between the Chert Beds of 

 the Isle of Wight and the base of the Chloritic Marl of Ibbetson, 

 there is in this again a further reason for distinguishing my 

 Warminster beds (10, 11, 12) from the Malm Series and Chert 

 Series of the Upper Greensand. For these and other reasons I 

 cannot agree with Dr. C. Barrois and Mr, A. J. Jukes Browne in 

 classifying beds 10, 11, 12 with the Upper Greensand. 



Neither should English geologists too hastily agree with Dr. 

 Barrois' definition of the Upper Greensand as found in England." 

 The fauna of our Upper Greensand is a poor one undoubtedly. 

 And it is true enough (as Dr. Barrois says) that the fauna of the 

 Malm Series of the Upper Greensand approaches to that of Black- 

 down, and the fauna of the Chert Series to that of Warminster. 

 But it is not, therefore, necessary to divide the Upper Greensand. 

 The English Upper Greensand fauna has never been worked out 

 carefully. When this has been done it will be found probably to 

 approach more nearly, as a whole, to that of the " Meule de 

 Bracquegnies " than separately to the faunas of Blackdown and 



^ Eecherches sur le Ter. Cret. de I'Angleterre, Lille, 1876, page 71. 

 "^ Quart. Journ. Geol. Soc. vol. xxx. p. 386. 

 3 Geol. Mag. Dec. II. Vol. IV. p. 357. 

 * Bull. Soc. Geol. de France, 2^ ser. vol. xx. 



5 L'Age des Couches de Blackdown, par Ch. Barrois, An. Soc. Geol. du Nord, 

 torn. iii. p. 1. 



