360 WHITE AND SCHUCHERT—CRETACEOUS SERIES OF GREENLAND. 
At this point, from 50 to 100 feet above tide, are exposed thin sand- 
stones, above which occur about 75 feet of the dark shale. This shale, 
which was reddened a little farther west, is here unaltered and reveals 
numerous impressions of leaves, some of which are well preserved. Large 
fragments of fossil tree trunks are occasionally met in debris in the bed 
of the stream and on the broad glacial fan. 
Regarding the invertebrates found at Ata, Dr Stanton reports the 
following : 
“The collections from the vicinity of Ata are apparently all of about the same 
age and they are doubtless from the same beds that furnished the collections Studied 
by de Loriol. Unfortunately, there are no ammonites nor other strictly charac- 
teristic Mesozoic forms in the collections, and our comparisons must be limited to 
a few species that are also found in the Cretaceous beds on the north side of the 
peninsula; these are Pecten ataensis de Loriol and two species of Zucina. Although 
these are forms that might occur in the Tertiary as well as the Cretaceous—that is, 
they are persistent types still represented by similar forms—their specific identity 
with fossils found in the same general region with characteristic Cretaceous species 
makes it probable, in the absence of contradictory evidence, that the beds in which 
they occur are of about the same age as the Upper Cretaceous beds on the north 
side of the peninsula. 
“The fossils from one mile east of the houseplace at Ata are a small Nodosaria, 
Pecten ataensis de Loriol, Leda (?) sp., two species of Lucina, and a fragment prob- 
ably of Solemya, with undetermined casts and impressions of small bivalves that 
may represent other genera. 
‘“The locality one and one-half miles west of Ata yielded a larger collection of 
the same species, with additional forms as follows: 
Kcehinoids, indeterminate fragments and - Ostrea ? 
impressions. Modiola ? 
Pecten ataensis de Loriol. Cuspidaria sp. 
Area sp. Dentalium, two species. 
Leda, two species. Crustacea, indeterminate fragments and 
Lucina, four species. impressions.”’ 
At this locality were found the following plants, kindly identified for 
us by Dr F. H. Knowlton: 
Juglans wrctica Hr. (small leaflet), A. Lawrus glutonia Hr.? AP. 
Sequoia rigida Hr.? KAP. Laurus angusta Hr. AP. And other fairly 
Andromeda pfafiiana Hr.? A. : good leaves not identified. 
Dr Stanton reports that 
“The collection from west of houseplace at elevation of 175 feet yielded only a 
smooth species of Avicula having about the form of A. vebrascana E. and S., but 
lacking the radial sculpture. 
“From locality 1,800 feet above sea level, at Ata, the only recognizable fossil is a 
Lucina identical with a species occurring at one and one-half miles west of Ata.” 
