THE CRETACEOUS FLORA OF NEW ENGLAND 609 



In the last few years the geology of Long Island has been studied 

 by Veatch,^ Fuller,^ and others, and the southward extensions of 

 the Raritan and Magothy floras across New Jersey and in Delaware 

 and Maryland have been investigated by the writer.^ From the 

 strike of the Cretaceous beds across Long Island as determined 

 by the authors above mentioned; by a study of their lithology 

 and genesis; and by an analysis of the insular floras, for a knowl- 

 edge of which we are indebted almost entirely to the long-continued 

 labors of Dr. Arthur Hollick,'' it is now possible to determine with 

 certainty the age of a number of the localities where Cretaceous 

 plants have been found and to show with a fair degree of proba- 

 bility the age of the original deposits from which the more out- 

 lying morainal-materials-carrying plants have been derived. 



Without burdening the reader with the steps in this analysis, 

 the conclusions at which the writer has arrived will be given, and 

 a list of the Raritan and Magothy floras will be appended, so that 

 the following statements can be verified by anyone that cares to 

 take the trouble to do so. 



The beds on Staten Island offer little difficulty, since they are 

 practically continuous with those of New Jersey; in fact Hollick 

 has indicated in several publications that the celebrated Kreischer- 

 ville outcrops are of Raritan age. From clays in place plants have 

 been collected at Green Ridge and around Kreischerville. From 

 morainal material Upper Cretaceous plants are recorded from 

 Tottenville, Richmond Valley, Princess Bay, and Arrochar. 

 These also are probably all of Raritan age. 



Along the north shore of Long Island fossil plants have been 

 collected from clays in place at Glen Cove, Cold Spring, and 

 Northport. From the geographical position of these outcrops, 

 their distance above bedrock, and as is conclusively shown by 



^ A. C. Veatch, Professional Paper No. 44, U.S. Geol. Surv., 1906. 



2 M. L. Fuller, Professional Paper No. 82, U.S. Geol. Surv., 1914. 



3 E. W. Berry, Contributions to the Mesozoic Flora of the Atlantic Coastal Plains: 

 I, Bull. Torrey Bot. Club, XXXIII (1906), 163-82, pis. 7-9; IV, Ibid., XXXVII 

 (1910), 19-29, pi. 8; VII, Ibid., XXXVIII (1911), 399-424, pls. 18, 19; X, Ibid., 

 XLI (19 14), 295-300. 



4 Nearly all the literature is summarized by him in Mon. U.S. Geol. Surv. (1906), 

 L, since which date only a few minor papers have been published. 



