782 EDMUND W. SINNOTT 



previous to the Cretaceous, although this cannot be said to be 

 absolutely proved till they are brought to light as fossils from the 

 earlier periods of the Mesozoic, a discovery which diligent search 

 may reasonably be expected to yield. The establishment for the 

 angiosperms of an antiquity greater than that usually accorded 

 them at the present time will be of some importance geologically, 

 since the occurrence of fossil members of the group in a given 

 formation will no longer be regarded as a demonstration of the 

 post- Jurassic age of the latter. 



