GRAPTOLITES OF NEW YORK, PART 2 



20' 



Palaecdictyota clintonensis nov. 



Plate 6, figure 5; plate 7, figure 5; plate 8, figure 3 



Mr Hartnagel while engaged on an investigation of the iron ores of 

 the Clinton formation obtained in the ferruginous shale that directly oxer- 

 lies the ore a few small but finely preserved fragments of a graptolite that 

 is apparently closely related to P . a n a s t o- 

 motica. Later collections have shown this form 

 to be not uncommon above the lower iron ore 

 bed at Clinton. N. Y. 



The main difference is one of relative dimen- 

 sions, the Clinton form having narrower branches 

 (.4 mm- 1 mm, mostly only about .5 mm) and 

 smaller meshes (five to seven in 10 mm transversely 

 and three to four longitudinally). The meshes are 

 also relatively wider and shorter. 



Fig. 104 Palaeodictyota clin- 

 tonensis sp.nov. Enlargement (x 5) 

 of portion of rhabdosome, showing the 

 thecal apertures 



Palaeodictyota bella (Hall & Whitfield) 



Plate 3, figure 7 



Inocaulis b ell a Hall and Whitfield. Pal. 0. 1875. 2: 122; pi. 6, fig. 2 



Inocaulis bella Spencer. Can. Nat. 1875. 8:458 



Inocaulis bella Spencer. Can. Nat. 1882". 10:165 



Inocaulis bell us Spencer. Acad. Sci. St Louis. Trans. 1884. 4:564,585 



Inocaulis bellus Spencer. Mus. Univ. State Mo.- Bui. 1884. 1: 14, 35 



aff. Inocaulis bellae Lindstrom. List. foss. faunas Sweden II. 1888. p. 22 



aiT. Inocaulis bellae Holm. Bih. till K. Swensk. Akad. Handl. 1890. v. 16, no. 7, 



p. 4 

 Inocaulis bellus Gurley. Jour. Geol. 1896. 4:99,308 

 Inocaulis bellus Gurley ms. 



Hall's description of this species is based on a single specimen. 



Gurley makes the following remarks : 



I am indebted to Prof. Edward Orton for the loan of the type specimen 

 of this species. After careful comparison with it of Hall's description and 

 figure I can not find that either leaves much to be desired. Only one cor- 

 rection should be made. The strongest branches reach a width of 1 mm 

 (0.04 inch), whereas Hall says that 0.03 inch is the greatest width attained. 



