PEAIJE.] 



EESUME ^PAL^ZOIC EOCKS CARBONIFEROUS. 



619 



Organic contents. 



I have already intimated tliat a portion of tlie beds referred by me to 

 tlie Carboniferous may be Devonian or Silurian, but all the determinable 

 fossils collected are Carboniferous in their facies. Many of them are 

 undoubtedly referable to the Coal Measures, which in our district con- 

 sist almost entirely of limestones. The forms of some of the subdivis- 

 ions of the Carboniferous are so apt to be vertically distributed through- 

 out the others that the division is of little use except on lithological 

 grounds, and our sections are too general to do that in the district under 

 consideration. A hst of fossils from the west side of Soda Spring Hills, 

 collected m 1871, is given in a preceding chapter. 



The following is a list of Carboniferous fossils collected in the district 

 during the season, and kindly identified for me by Professor White : 



List of Carboniferous fossils. 



Zaphrentis sp. ? 

 Froductus sp. ? 

 Hemipronites sp. ? 

 Zaphrentis sp. ? 

 Froductus sp.? 



Zaphrentis sp. ? 

 Archimedes sp.? 

 Crinoidal stems. 

 Corals indistinct. 



Spirifer sp. ? 



Spirifer striatus. 



Spirifer sp. % 



Spirifer [Martinia) planoconvexus. 



Zaphrentis sp. 1 



Clauconome sp. ? 



Bhomhopora sp.f 



Chonetes platynota. 



Syrinr/opora sp. ? 



Fenestella sp. f 



Crinoid columns. 



Froductus multistriatus. 



Hemipronites crenistria. 

 Spirifer sp, °? 

 Fuomphalus sp. ? 

 Flatycrinus sp. ? 

 Zaphrentis sp."? 

 Mnrchisonia sp. ? 

 Synocladia sp. "l 

 Froductus sp. "? 

 Froetus sp.? 

 Streptorynchus sp.? 

 Ftilodyctia sp.? 



Labarge Mountain, Stations 19 and 



20. 



Station 25, west of Fontenelle Cation. 

 Coketown Butte, north of Smith's 



Fork of Bear. 

 Station 47, South of Piney Creek- 

 Station 48, between the heads of 



Piney Creek. 



In bowlders from conglomerates of 

 the Wahsatch Group, north of 

 Bitterroot Creek. 



Virginia Peak, near the north end 

 > of the Salt Eiver Eange, on the 

 east side. 



3 



( McDougal's Pass, at head of Sickle 

 ( Creek. 



. Station No. 57, at the north end of 

 the Salt Eiver Eange, west side. 



