CAPE COD GEOLOGY 



157 



Diospyros apiculata Lesq.? 

 Diospyros provecta Vel. 

 * Periploca cretacea n. sp. 

 Premnophyllum trigonum Vel. 

 Williamsonia problematic/! (Newb.) Ward 

 *Strobilites perplexus n. sp. 

 Tricarpellites striatus Newb. 



*Tricaly cites major Hottick 

 Tricaly cites papyraceus Newb. 

 *Calycites obovatus n. sp. 

 Carpotithus floribundus Newb. 

 Carpolithus hirsutus Newb. 

 Carpolithus sp. 



REPORT ON UPPER CRETACEOUS FLORA OF MARTHAS VINEYARD 



By Edward W. Berry 



The Upper Cretaceous flora of Marthas Vineyard comprises 117 recorded 

 species, which were found in material collected at Chappaquiddick, Nashaquitsa, 

 and Gay Head, most of it at Gay Head. This flora has been elaborated by 

 David White and Arthur Hollick. Hollick considers it the equivalent of that 

 of the Raritan formation of New Jersey, but it is obviously younger, being 

 equivalent to that of the Magothy formation. 



Fifteen of the species are confined to Marthas Vineyard. Of those discovered 

 elsewhere 67 are not found in the Raritan, and of the 35 forms in the Raritan 

 29 are common to the overlying Magothy, leaving but 6 forms that are peculiar 

 to the Raritan, and all these are vague or unique {Carpolithus, "Williamsonia, 

 Tricarpellites, T ricaly cites) . Nearly all of the plants found on Marthas Vineyard 

 that also occur elsewhere are common to the Magothy of New Jersey or Mary- 

 land or to post-Raritan formations at other places. Thus 44 occur in the Magothy 

 and 20 are peculiar to Marthas Vineyard and the known Magothy, so that I 

 have no hesitation in correlating the leaf-bearing Cretaceous plants of Marthas 

 Vineyard with those of the Magothy formation. 1 



Tertiary System 



By J. B. Woodworth 

 ABSENCE OF EARLY TERTIARY FORMATIONS 



No deposits of either Eocene or Oligocene age have been found in place 

 on Marthas Vineyard. Some fragments of fossiliferous sandstone found in the 

 surface drift on Chappaquiddick Island were referred to the Eocene epoch by 

 Mr. Thomas C. Brown in 1905, but the position of the rock from which these 

 fragments were derived has not been determined. The direction of glacial 

 flowage in the district would lead one to look for this sandstone in place along 

 a line extending northeastward across Cape Cod past Barnstable and thence 



1 Berry, E. W., Jour. Geology, 23, pp. 608-618, 1915. 



