99 



BUTH 



Buthotrephis gracilis. IRogers, 1853, page 808; no figure. 



II b, Kogers, 1858, 

 page 822, fig. 625. 

 Hall, Geology of the 

 Fourth"District,1843, 

 page 69, fig. 14. V a. 

 (Hall, Pal. N. Y., 

 Vol. 1,1847; Treriton 

 up to Clint 07% forma- 

 tions.) — In Pennsyl- 

 vania, Huntingdon 

 Co. Augliwick and 

 Ferguson I valleys, in 



Clinton f lime shales 

 (133' thick) f overly- 

 ing the fossil ore bed 

 at Orbisonia. C. E. 

 Hal Ps collections, 

 Proc. Am. Phil. Soc. 

 Philada.,'Jan. 5, 1876. 

 White's ^Report T3, 

 625, page 141.;— *F(^. 

 N ot;e. Hall 

 says that a coaly 

 ^^ film is all that 

 remains of the 

 plant, on the 

 shaly partings 

 ^W between the 

 '^^m. crystalline lime- 

 stone beds, in 

 ^fthe central and 

 lower part of the 

 ^^^^ Trenton fbrma- 

 ^^^J tion, at Jackson- 

 ville and Mid- 

 dleburgh in 

 Herkimer county, New York. II c. — Great numbers of ob- 

 scure vegetable markings are seen on the shaly beds of the 

 Irenton throughout the United States and Canada. — Hall. 



ftig;^jT^'«^'"rvS 



