386 J. S. Diller — Brag don Formation. 



reported as Devonian like those already known in the region. 

 The Devonian fossils in the pebbles simply show that the 

 conglomerate is later than the Devonian. 



. Careful search was made in the paste of the conglomerate 

 as well as in the associated sandstones and shales for fossils of 

 the Bragdon epoch. Fossils were found in eleven localities, 

 enumerated below, at six of which the fossils are in shales and 

 sandstones, associated with the characteristic Bragdon con- 

 glomerate, while at the other five the fossils occnr in the paste 

 of the conglomerate, but not in the pebbles. 



One of the most important occurrences is upon the divide 

 southwest of High Mountain, where the sandstones conforma- 

 bly interbedded with characteristic Bragdon conglomerate 

 contain shells which Dr. Girty reports as " Paleozoic, and 

 without much doubt early Carboniferous, related to the Baird." 

 The fossils, among which is a large " Spirifer of the Striatus 

 type," occur in several beds. The exposures are good and 

 leave no doubt that the fossils are of the Bragdon horizon. 



Perhaps the most important locality is beside the railroad, 

 one and one-half miles northeast of La Moine, where fossils 

 were found in the sandstone adjoing the Bragdon conglom- 

 erate. From this locality Dr. Girty reports Sehizodus sp., 

 Loxonema sp., P leitrotomaria ? sp. and Straparollus afi°. S. 

 luxus. There is no room for doubt that these fossils belong 

 to the Bragdon and are not derived from an older formation, 

 and Dr. Girty remarks that if this be admitted "no other con- 

 clusion is possible than that the Bragdon is a Paleozoic forma- 

 tion. Indeed it is fairly safe to say that the horizon is not 

 later than Baird, for the local faunas have many points of 

 resemblance with that of the Baird, and none at all with those 

 of the overlying Carboniferous formations." 



From the shales about two and one-half miles southwest of 

 the mouth of Hirz Creek, and also from shales in an isolated 

 patch of the Bragdon about one and one-fourth miles a little 

 east of south from Bayha, Cephalopods were collected. From 

 the first locality Dr. Girty reports Glyphioceras, and from 

 both a form " of what seems to be a Nautiloid to which Mr. 

 Stanton recalls nothing similar in the Mesozoic and which is 

 not out of ]3lace in the Carboniferous." Dr. Girty states 

 further that " The little Goniatite shows only the course of 

 the suture lines, external characters being concealed. The 

 sutures remind me much of those of the sphcerieas group of 

 Goniatites {Glypkioceras\ and if this is truly the relation of 

 the specimen the age would probably be late Lower Carbon- 

 iferous. Prof. J. P. Smith, who examined the specimen, on 

 the other hand, thinks that it might represent an immature 

 stage of an Ammonite. It seems to me, however, that an 



