L. F. Ward—Mesozoie Dicotyledons. 299 
The Quadersandstein of Germany, in which the greater part 
of the European fossil plants have been found, is an extensive 
formation, reaching in Saxony and Bohemia from the lower 
Cenomanian to the White Chalk, or upper Senonian. Its 
middle portion is occupied by the Pliner sandstone and Planer 
marls, which extend downward into the upper Cenomanian 
and upward to the base of the Senonian. The somewhat local. 
character and indefinite boundaries of the Quader formations 
have rendered it customary on the Continent, even with Ger- 
man geologists, to adopt the system of d’Orbigny as now mod- 
ified and to speak of the Cenomanian, Turonian and Senonian 
instead of Lower Quader, Pliner and Upper Quader, and it is 
so how common to apply these terms to formations in other 
parts of the world which are supposed to occupy the same stra- 
graphical positions. 
‘The leading Huropean localities from which Cretaceous 
Dicotyledons have been collected are: Saxony (Niederschéna), 
schéna lying near its base. The Cretaceous of the Harz 
district, is probably lower Senonian. In Westphalia, Hosius 
and Von der Marck find fossil Dicotyledons at two different 
horizons, both of which, however, they place in the Senonian. 
ic e ie about Legden, Ahaus, Haltern, etc, is regarded as 
wer 
beds, as already remarked, are distinctly fixed in the Urgonian, 
Which is lower Cretaceous, and lies between the Neocomian and 
the Gault. The discovery of a dicotyledonous plant at this 
horizon is one of the most interesting facts of paleontolog- 
leal science. The beds of Atane, where the greater part of the 
Hills of our Western Territories. 
The localities in British Columbia from which Cretaceous 
Dicotyledons have come are all regarded by the od 
8eologists as upper Cretaceous. The inland portions, situate: 
