•_'2 II. Bassler — Cyeadophytefrom th< Coal Measures. 



the middle Conemangh at Pitcairn about fifteen miles east of 

 Pittsburg, Pa. The determinable specimens of this collection, 

 to the number o\' about twenty, are distributed among the 

 reptilian genera Naosaurs and Desmatodon and the amphibian 

 genus JEryojpSf and are declared to be distinctly of tbe same 

 character as those from tbe Permian beds of northern Texas. 

 These bones came from a horizon in the Pittsburg Red Shale 

 about 35 feet beneath the Ames or Crinoidal Limestone whicb 

 in turn lies 315 feet beneath the base of the Pittsburg Coal 

 Seam and marks tbe last paleozoic marine invasion of tins 

 general region. Further, Dr. I. C. White, in Vol. II (A) of 

 the West Virginia Geological Survey (1908), page 623, men- 

 tions tbe discovery near Salt Lick Bridge, Braxton Co., 

 W. Va., a few feet above tbe horizon of the Ames Limestone,' 

 of what appears to be a perfect cast of the tibia of a large 

 reptile allied to the Permo-Triassic Pareiasauria. In this 

 connection it is interesting to recall that Scudderin 1896 (Bull. 

 U. S. G. S., No. 121, p. 12), in discussing a collection of in- 

 sect wings made near Steubenville, Ohio, from a horizon " a 

 little above the Crinoidal" or Ames Limestone, states that 

 this insect fauna closely resembles one from the Lower Permian 

 of Weissig in Saxony. 



The reference of each of the above fauna! horizons to the 

 Ames marine horizon raises the question of the relation of the 

 " Four-foot Seam " at Barnum to this marine limestone. This 

 coal-seam is the same as that at Barton, Md., 9 miles to the 

 northeastward in the Georges Creek Valley which is known 

 in the literature of the region as the JBakerstown Coal and 

 which at Barton is about 135' above the uppermost known 

 marine fauna — Brush Creek of the literature — but this so- 

 called Brush Creek horizon on the evidence of a considerable 

 marine fauna is considered by Drs. C. K. Swartz and W. A. 

 Price as probably that of the Ames Limestone. 



In addition to the occurrence of Plagiozamites Planchardi at 

 Teufelsbrunnen in Alsace it has been found also in France, in the 

 Tranchee de Foret, in shales associated with the Grand Couche 

 of the Commentry Basin' 55 ' and in shales associated with the 

 upper seam of coal at the mines of Longpendu in the Blanzy 

 Basin, f in both cases at practically the same horizon (slightly 

 older than the one in the Vosges) which Zeiller^: considers 



* Renault, 1890, Flore Foss. terr. hcraill. de Commentry, 2e part, p. 615, 

 Atlas, pi. lxvii, fig. 8. 



fZeiller, 1906, Flore foss. bass, houill. et Perm, de Blanzy et du Creusot, 

 page 193, pi. xlvii, fig. 2. 



|Zeiller, 1894, Sur l'age des depots houill. d. Commentry, Bull. Geol. 

 Soc. France, 3e ser., t. xxii, p. 275 et seq., also Zeiller, 1906, loc. cit., pp. 

 237, 247. 



