rS Bulletin 15 328 



Fusus multisulcafus , F. elongahis, Pleurotoma intorta, P. Konincki 

 and Borsonia gracilis. Full discussions of the fauna are gived by 

 von Koenen* and Speyer.f 



Sands of Stettin. A somewhat later deposit than the Septa- 

 ria clays are the sands of Stettin which usually overlie the clays 

 and cover a wide area of the northern plains. The sands are 

 charadlerized by PeSIimculus Pkilippi, Cardium cingulatum and 

 Cyprina rotuyidata. 



Sands of Cassel a7td Bunde. At Bunde and Cassel are marine 

 sands of upper Oligocene age, corresponding, as Beyrich antici- 

 pated in 1853, to the Bordeaux (Aquitanian) beds. The charac- 

 teristic fossils J are Echinolampus Kleini^ Pe£len fanus, P. Mun- 

 steri and Terebratula grandis. 



In 1827, Goldfuss published the first scientific treatise! | on 

 the fossils of Germany. This was based on a study of private 

 colledlions, especially that of Comte G. de Munster, A number 

 of Oligocene species of various horizons are described in the work. 



The Oligocene in Belgium. In Belgium, middle and lower 

 Oligocene beds occur in the eastern part of the country in the 

 province of Ivimbourg, and in central Belgium in the province of 

 Brabant. The upper Oligocene is but little represented, and, as 

 regards marine horizons, is wholly lacking. 



Dumonf s classification. Alexandre Dumont§ made the first 

 classification of the Belgian Oligocene. 



*Das marine Mittel-OIigocsen Nord-Deutchlands u. seine Mollusken- 

 fauna, 1867, Cassel, 148 pp. (Extr. Paleontographica, Band X.VI, pi. VI, 

 VII, XXVI to XXX. 



fDie Tertiarfauna v. Sollingen bei Jerxheim im Herzogthum Braun- 

 schweig. Paleontographica IX, 1864, 7 Lief., p. 247. 



X See Speyer, Die Conchylien der Casseler Tertiar-Bildungen. Paleon- 

 tographica,' ^^.r^A XVI, 5 Lief., pp. 175-218 (1866-1869); also Bd. IX (1862- 

 1864); Die oberoligocsenen Tertiargebilde u. deren Fauna in Fiirstenthum 

 Lippe-Detmold, in-4, 52 pp., 5 pi., Paleontographica, part XVI. 



II Petrefadla Germanise, Dusseldorf, 1827; second edition by Giebel, 1866. 



\ Memoire sur la constitution geologique de la province de Liege, in 4° . 

 (Insere dans les Mem. couronnes de I'Acad. roy. de Bruxelles). 



