354 WHITE AND SCHUCHERT—CRETACEOUS SERIES OF GREENLAND. 
Tn association with these plants occur poorly preserved invertebrates. 
These were referred for study to Dr T. W. Stanton, who reports as follows: 
y) 
“The few fossils from Ujarartorsuak are entirely different from any of the others 
[Atane, Patoot, or Niakornat] and probably are of more recent age. They appear 
to be all fresh-water forms and include one or possibly two species of Unio, an 
Anodonta (?), a Sphexriwm, and two species of gasteropods, each represented by a 
specimen too imperfect for generic determination. While these forms are such as 
might occur in the Upper Cretaceous, I think it more probable that they are from 
Tertiary beds.” 
Paleobotanists will see from the plant lists just given that the middle 
locality (“ B” of section) exhibits a new and later phase than the typical 
Kome flora, while its relation to the Atane flora is so close, notwith- 
standing its transitional facies, as to strongly argue for a reference to the 
latter at the outset. The western flora (‘“C” of section) is plainly not 
older than the Atane. In fact the floras at Ujarartorsuak prove beyond 
doubt the hitherto questioned presence of the Atane beds in the midst 
of the Kome region on the north side of Nugsuak peninsula. 
On ascending the rather steep little ravine at the western end of the 
section the coastward dip is found to vary from 15° to 35°. The same 
beds occurring near its mouth are also present at 500 feet above tide. 
Crossing over the narrow divide (700 feet above tide) to the west of 
the head of this ravine, one descends to the bed of the east branch of the 
glacial stream which debouches a short distance west of Ujarartorsuak. 
This branch flows from its bifurcation at 760 feet above tide to its mouth, 
just below the main glacier, at 360 feet above tide, on nearly the same 
stratum of ferruginous sandstone, just above which P. crameri is abun- 
dant in smutty shales. The series here is composed of thin streaks or 
groups of dark carbonaceous shale, or coals, intercalated in thin friable 
gray sandy shales. Sandstones, rarely 50 feet thick, occur up to an alti- 
tude of about 2,525 feet,* when the Tertiary basalt, many hundred feet 
in thickness, is encountered. From about 1,000 feet above tide the sec- 
tion is exposed in cliffs. There is, therefore, at least 1,400 feet of sedi- 
mentary rocks exposed beneath the basalt at Ujarartorsuak. 
A little above the fork of this branch, at about 1,000 feet above tide 
another plant horizon was discovered which has the following species: — 
Sphenopteris lepida Hr.? Kk. Sequoia rigida Hr. KpsAP. 
Oleandra arctica Hr. Kips. Phyllocladus rotundifolius Hy. 
Nathorstia firma Hr. K. Sassafras arctica Hr.? A. 
Ginkgo primordialis Hr. A. Carpolithes thulensis Hr. K. 
Cyparissidium gracile Hr. KkpsAP. 
* Sandstones are more numerous in the intervals 1,000-1,200 feet and 1,900-2,340 feet, while coaly 
groups occur at 1,750-1,875 feet and 2,340-2,510 feet above tide. 
