4-i6 



NEW YORK STATE MUSEUM 



Position and localities. Hall cites the form from the " Hudson River 

 formation in Iowa" ; his type in the American Museum of Natural History is 

 labeled " Maquoketa creek, Iowa." To Gurley it was only known from the 

 lower Maquoketa shale of that state and Winchell and Schuchert record it 

 from the " Hudson River group," near Granger and near Spring Valley, 

 Minn. ; and Graf, la. ; Winchell and Ulrich, in the synoptic list of fossils, 

 given in the second part of the above cited work, place it in the Utica group 



of Minnesota and cite it also from 

 the same formation in the Cincin- 

 nati region. Its occurrence in the 

 latter region is shown by two small 

 slabs in the Ulrich collection, which 

 are covered with this fossil and 

 come from the lower third of the 

 Eden shale. Nickles, in his geology 

 of Cincinnati cites it amoni: the 

 forms which range through the 

 Utica. Material from the Diplo- 

 graptus bed at Graf in Iowa, 

 supplied by Professor Sardeson 

 contains this form but loss abun- 

 377 dant than D i p 1 o g r a p t u s 



Fig. 368-77 Climacograptus putillus (Hall). Fig. 368 n p n c f n - ini 1 iri rollprfiotm from 



Copy of one of Hall's original figures (x iz). Fig. 369 Hall's type. pCOSLd dllU 111 COllLLLlOllS ITOIll 



Fig. 370 Specimen on same slab with type, showing sicular end. _ r .. . 1 



Fig. 37 J -73 Specimens from Rural cemetery; the last one showing Grailc'Cl' ] haVC tailed tO lllKl It. 

 profile view of one row of thecae. Fig. 37+ Sicula. (x 7). Fig. 375 & 



Sicular end of specimen from lower third of Eden shale in Kentucky, o • r 1 • 1 . 1 1 11 



Fig. 376 Group of specimens from Fiat creek, near Mohawk, bpeCHTienS (H il light cliTU) SlialC 

 N. Y. Fig. 377 C. innotatus Nicholson, copied for comparison 



from Nicholson. All enlarged x 5, except where differently stated fi-(\i-i-i -\ rl "IIIS'IS Tccntt'l" See 1 "" " ' 



17W] are covered with it [U. S. Geol. Sur. Coll.]. 



The present writer has found it to be a common fossil in the outcrops 

 of the Utica shale in the Hudson valley (as at Waterford, Rural cemetery 

 near Albany, where it occurs not infrequently and in fine preservation ; 

 Penitentiary and Beaver park at Albany, Black creek near Voorheesville) 

 and in the Mohawk valley, where, however, it has never been seen in the 



