150 STANTON & KNOWLTON — LARAMIE AND RELATED FORMATIONS. 



displacements its relations to well established horizons have always been 

 doubtful. We cannot make any direct contribution to the subject, but 

 four or five miles to the eastward, between Carbon and Allen junction, 

 we observed an older coal-bearing series comparable with that on the 

 Laramie plains and at Point of Rocks. The basin in which the Carbon 

 coal mines are located seems to be formed of the highest strata exposed 

 in the neighborhood. A short distance east of the village the beds have 

 a much steeper dip to the west and appear to pass under the coal series. 

 Several thousand feet of these upturned beds are crossed between Carbon 

 and Allen junction, and near the latter place there are prominent ridges of 

 sandstone, with which there are associated several coal seams and beds of 

 shale. In a higher sandstone band near the Sulphur springs, a little over 

 a mile west of Allen junction, a few marine fossils were collected, includ- 

 ing Mactra sp., Scaphites sp., and Baculltes ovatus, and a still higher horizon 

 one-half mile farther west yielded Pectuncalus holmesianus, (White) (?), 

 and Anomia sp. 



-COALVILLE, UTAH. 



The interesting section at Coalville has been frequently described and 

 discussed.* Both the Colorado and Montana formations are present and 

 coal-bearing, and at the top of the series are the great conglomerates of 

 Echo canyon referred to the Wasatch. The Laramie has not been recog- 

 nized in the section, though it may possibly be represented by barren 

 strata between the Wasatch conglomerates and the highest marine strata. 

 It would not be within the scope of the present discussion to consider 

 the whole Coalville section, but in connection with the similar occurrences 

 here recorded we wish to call attention to the plant-bearing horizon near 

 Coalville in the Montana formation, fully 1,800 feet below the top of the 

 marine Cretaceous.f The plants are mostly Laramie species, and would 

 have been assigned to that formation in the absence of stratigraphic 

 evidence. The following is the list : 



Sequoia longlfolia, Lx. 



Sequoia reichenbachii, Heer. 



Glyptostrobus europseus {?), Heer. 



Salix elongata, O. Web. 



Salix Integra, Gopp. 



Salix sp. 



Ficus lanceolata, Heer. 



Flcus planicostata (?) , Lx. 

 Ficus irregularis (?), Lx. 

 Platanus marginata, (Lx.) Heer. 

 Viburnum sp. 

 Cinnamomum affine, Lx. 

 Magnolia tenuinervis, Lx. 



CROW CREEK, COLORADO. 



The Laramie beds on Crow creek, 25 miles northeast of Greeley, Col- 



* An account of the stratigraphy and paleontology with references to the literature may be 

 found in Bull. U. S. Geol. Survey, no. 106, pp. 37-44. 

 f Bull. U. vS. Geol. Survey, no. 106, pp. 38, 42. 



