I04 CRETACEOUS PALEONTOLOGY. 



from 22 localities during the recent operations of the Survey, 

 and these will be noted in regular geographical order, so far as it 

 can be done, beginning with the northeastern portion of the area 

 and proceeding to the southwest. The collections from these dif- 

 ferent localities, however, have not been equally complete, and in 

 only a few places have conditions been such as to allow the for- 

 mation of exhaustive collections. 



The.most northeasterly locality from which the Navesink fauna 

 has been collected, is at Atlantic Highlands, in the bluff along the 

 shore of Raritan Bay, east of the railroad station. The section 

 here (Locality io8), is as follows, beginning at the base: 



1 08^. Laminated sand and clay with little or no glau- 

 conite, usually of a gray color; the Wenonah sand, . .,. . 40 feet. 



108^ Moderately coarse quartz sand with more, or 

 less glauconite, fossils abundant; the Mount Laurel 

 sand, . .1. .1. . .|. . .,. . .|. . . 1. . ., .1. . .,. . .;. . .1 — 3 feet. 



108*. Dark greenish, greensand marl, with a line of 

 concretions at the base, ,. . .1. . ... . .;. . .... . ., 11 feet. 



108*. Yellow sand and gravel. Pensauken. 



Lo'cdity i.o8^^ — 'At the time this locality was visited by the 

 writer, the conditions were not favorable for making a large 

 collection of fossils, but a collection of material from the same 

 locality, preserved in the State Museum at Trenton, has been 

 available for study, and has supplied many species not collected 

 by the writer. Prof. R. P. Whitfield, of the American Museum 

 of Natural History in New York, has visited the locality fre- 

 quently and has accumulated a large representation of the fauna, 

 which is now preserved in the collections of the American Mu- 

 seum. This collection contains a number of species not observed 

 by the writer. The long list of fossils published by Prather^ 

 from Atlantic Highlands are all from this same fossil bed, 

 although many of his identifications are manifestly incorrect, 

 and his stratigraphy is muddled beyond all possibility of inter- 

 pretation. The fossil bed at this point is the basal or "sand 

 marl" division of the Lower Marl of Cook^, being the Mount 



^Am. GeoL, vol. 36, pp. 168-171. 

 "Geol. N. J. (1868), p. 263. 



