638 NEW YORK STATE MUSEUM 



3993 --f 2 ^ type Hall. Paleontology of New York. 1879. v - 5» 



pt 2, pi 79, fig. 5,6. 



Schoharie grit Schoharie N. Y. 



J. Gebhard purchase 



3994 12 |" type Hall. Paleontology of New York. 1879. v. 5, 



pt 2, pi. 79, fig. 7, 8. 



Schoharie grit Schoharie N. Y. 



J. Gebhard purchase 



Orthoceras profundum see Orthoceras (Spy- 

 roceras) profundum 



Orthoceras (Spyroceras) profundum Hall 



3995 12 i 00 hypotype Orthoceras profundum Hall. 



Descriptions of new species of fossils from the Upper 

 Helderberg, Hamilton and Chemung groups. 1861. p. 48. 



Hall. Illustrations of Devonian fossils. 1876. Cephal- 

 opoda, pi. 37, fig. 5. 



Hall. Paleontology of New York. 1879. v. 5, pt 2, 

 pi. 37, fig. 8. 



Onondaga limestone Black Rock, Erie co. N. Y. 



Orthoceras rob us turn see Orthoceras (Geison- 

 oceras?) eriense 



Orthoceras rude Hall 



3996 1 2 f 01 type Orthoceras rudis Hall. Paleontology of 



New York. 1859. 3 : 346, pi. 72, fig. 4a, 4b. 



Helderbergian Schoharie N. Y. 



J. Gebhard purchase 



Orthoceras rudens see Orthoceras (Cycloceras) 

 rudens 



Orthoceras (Cycloceras) rudens Hall 



3997 12 f 02 type Orthoceras rudens Hall. 5th annual 



report of the New York state geologist. 1886. pi. (118)2, 

 fig. 1. 



Hall. Paleontology of New York. 1888. v. 5, pt 2, 

 supplement (= v. 7), p. 28, pi. 118, fig. 1. 



Hamilton beds ? Livingston county, N. Y. 



Pickett collection 



