118 Cincinnati Society of Natural History. 



falcatus; from the Black Butte saurian bed, Vibernum dichotomum; 

 from the Black Butte reel baked shale, Quercus Wyoming anus; from 

 Evanstou, Calycites hexaphylla, Carpolithes arachioides, now Legum- 

 inosites arachioides; from Elk creek, near Yellowstone river, Carpo- 

 lithes osseus\ ivom. six miles above Spring canon, near Fort Ellis, 

 Abies setlg era and Nyssa Lanceolata. 



He described, from the Dakota Group, six miles south of Fort 

 Harker, Kansas, Hymenophyllmn cretaceum, Caulinites spinosus, 

 Populites fagifolia, Jf'icus sternbergi, wo\y Persea steriibergi^ Sassa- 

 fras mirabile^ S. recurvatum^ now Platanus recurvata, S. harker- 

 anum^ now Cissites harkeranus, La^irophyllum reticulatum, Pteros- 

 permites sternbergi, now Protophyllum sternbergi; from nine miles 

 above Salina in the Saline Valley, Kansas, Populites salina^, now 3fen- 

 ispermites salinensis, P. affinis^wow Cissites affnis, and Pterosper mites 

 rugosus, now Protophyllum rugosum. 



Prof Meek* said that the coal-bearing rocks at Coalville, Utah, are 

 undoubtedl}^ of Cretaceous age, as he had from the first maintained, 

 and he quoted in support of this view his remarks in Dr. Hayden's 

 Report of 1870, page 299. He prepared a section running from the 

 principal coal-bed, near Coalville, in a northwesterly direction, to Echo 

 canon, a distance, b}'' a right line a little obliquely across the strike of 

 the rocks, of about three and a half miles. This section commences 

 393 feet below the heaiy bed of coal, and furnishes a thickness of 

 3,980 feet below the conglomerate, or including the conglomerate, which 

 is here 700 feet in thickness, 4,680 feet of strata. Several parts of 

 this section contain marine Cretaceous fossils, the highest of which' is 

 gray, soft, sandstone, 30 feet in thickness, aUjd 1,431 feet below the con- 

 glomerate. It contains many large Inoceramus, Ostrea and Cardium. 



The conglomerate not onh^ composes the towering walls of Echo 

 canon at places forming perpendicular, or even overhanging escarp- 

 ments, 500 to 800 feet in height, but also rises into mountain masses 

 on the west side of Weber river, near the mouth of the canon. It 

 probablj^ attains a thickness in places of 2,000 feet. This he referred 

 to Tertiary age because of its position above the Cretaceous, its non- 

 conformability with the rocks below it, and its remarkably coarse 

 material. 



[To BE Continued.] 



*6th Rep. Hayden's U. S. Geo. Sur. Terr. 



