224 CHARLES S. PROSSER 



7. Cryplonella endora Hall (rr). 



8. Camarotojchia 7narshallensis (A. Winch) ? (rr) 



The Allorisma shales No. IV contain the following species : 



1. Allorisma ventricosa Meek (rr). 



2. Sanguinolites (?) obliquus Meek (r). 



3. Sanguinolites arolus Meek (r). 



4. Sanguinolites sp. 



5. Camarotojchia marshallensis (Win.) (?) or C. Cooperi Shum. (?) 



6. Allorisma Winchelli Meek (c). 



7. Sanguinolites naiadiformis Winch, (r). 



8. Prothyris Meeki (Winch) (r). 



9. Spirophyton cf. crassui7i Hall (c). 



10. Syringothyris euspidatus (Martin) (rr). 



11. Liopteria sp. (rr). 



12. Discina (Orbiculoidea) pleurites (Meek) (?) (rr). 



Professor Andrews did not definitely indicate the bounda- 

 ries of the Waverly conglomerate ; neither did Professor Hicks 

 those of the Black Hand conglomerate and Granville beds. 

 The thickness of the conglomerate near Hanover was given as 

 from 85 to 90 feet, 1 and that of the Granville beds as from prob- 

 ably 25 to ill feet. 2 



The Fucoid layer (No. 4c) of Hicks' Granville beds is the 

 same as the "Allorisma layer" of Professor Herrick's and No. 4 

 of the Havens section. Division No. 2 of Professor Herrick's, 

 which he called the Middle Waverly or Kinderhook, was clearly 

 defined by Conglomerate No. I at the base and Conglomerate 

 No. II at the top, 3 and by its fossils correlated with the Kinder- 

 hook formation of the Mississippi valley. This formation is 

 apparently quite well marked by these two conglomerate strata 

 in the vicinity of Newark, and Professor Herrick identified Con- 

 glomerate II in sections from Ashland county to Sciotoville on 

 the Ohio River, 4 and later states that the Allorisma shale is " very 

 persistent and well limited, even when the Conglomerate (No. 



'Am. Jour. Sci., 3d ser., Vol. XVI, p. 217. 



2 Ibid., p. 218. The statement is not clear, and 85 feet possibly represents the 

 minimum thickness. 



3 Bull. Denison Univ., Vol. IV, 1888, pp. 105, 106. 



4 Ibid. See sections on p. 102. 



