60C NEW YORK STATE MUSEUM 



Gyroceras trivolvis Hall. Illustrations of De- 

 vonian fossils. 1876. Cephalopoda, pi. 54, fig. 4, 5 ; pl. 56 r 

 fig. 4. 



Gyroceras trivolve Hall. Paleontology of New 

 York. 1879. v. 5, pt 2, pi. 52, fig. 1-3. 



Onondaga limestone Schoharie N. Y- 



J. Gebhard purchase- 



3710 1 2 \ 2 7 type Hall. Paleontology of New York. 1879. v. 5,pt2 y 



pi. 52, fig. 4. 



Onondaga limestone Schoharie N. Y. 



J. Gebhard purchase 



3 71 1 12 | 27 type Hall. Paleontology of New York. 1879. v. 5,pt2> 



pl- 5 2 > fig- 5- 



Onondaga limestone Schoharie N. Y. 



J. Gebhard purchase 



3712 12 | 2 - 1 type Hall. Illustrations of Devonian fossils. 1876.. 



Cephalopoda, pl. 54, fig. 1-3. 



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

 pi. 52A, fig. 1-3. 



Onondaga limestone Schoharie N. Y. 



J. Gebhard purchase 



37 1 3 12 1 27 type Hall. Paleontology of New York. 1879. v. 5, 



pt 2, pl. 52A, fig. 4. 



Onondaga limestone Schoharie N. Y.. 



J. Gebhard purchase 



3714 12 | 27 type Hall. Paleontology of New York. 1879. v - 5> 



pt 2, pl. 52A, fig. 5. 



Onondaga limestone Schoharie N. Y. 



3715 i^-2- 2 -^ type Hall. Paleontology of New York. 1879. v. 5,. 



pt 2, pi. 52A, fig. 6. 



Onondaga limestone Cherry Valley N. Y. 



3716 J- 2 -!^ plastotype Hall. Paleontology of New York. 1879.. 



v. 5, pt 2, pl. 52A, fig. 7. 

 Onondaga limestone 



Gyroceras undulatum see Gyroceras (Hall- 

 oceras) undulatum 



Gyroceras (Halloceras) undulatum Vanuxem (sp.) 



3717 i 2228 hypotype Cyrtoceras undulatum Vanuxem. 



Geology of New York • report on the 3d district. 1842. 

 P- 139- 



