35 



Aecii. 



plate 49, fig. 5; plate 50, figs. 1, 2, 3, 4. Lesquereux identifies 

 it with Arch, stricta of Andrews, Ohio Pal. Vol. 2, p. 418, 

 plate 49, fig. 2, 2^.) — Abundant under Campbell's Ledge 

 {XII) near Pittston, Pa. One fragment found at Mauch 

 Chunk, Carbon Co., Pennsylvania. 



Note. — I. C. White gives the Coxton. Susq. N. branch section 

 of Catskill strata (IX), No 20 of which contains the plant; a 

 thin layer of red shale in the middle of a 55' greenish-gray 

 sandstone, just overlying his Montrose red shale formation. 

 Report G7, p. 61.—IX. 



Archaeopteris obtusa. {Noeggerathia obtusa.) Lesq. Geol. 



Pa., 1858, p. 830, fig. 684, /X Catskill formation; also p. 854, 



v^ ^ 11, found in 



jji, the Catskill 



red sand' 



x|j/ V--.' 



^ 





\ 



A 



\ 



stone (For. 

 XI) in 

 Mauch 

 Chunk gap. 

 Carbon Co., 

 Pa., in small 

 bits, with 

 bits of A, 



Lescj.lKSS 



minor^ and perhaps both are one species. Coal Flora, 1880, p. 

 301, pi. 49, fig. 6, same as fig. 11 above; and fig. 7, sketched 

 from large leaf of Mr. Riley, of Montrose, Wayne Co., Pa., part 

 of which is given in Dana's Man. GeoL, fig. 557 A. See also 

 Dawson in Geol. Sur. Canada, 1871, p. 46, pi. 16, fig, 188, two 

 leaves (pinnae) of perhaps a different species. — Catskill for- 

 mal ion. IX, 



