TYPE SPECIMENS OF PALEOZOIC FOSSILS 549 



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

 pi. 1, fig. 3. 



Onondaga limestone Williamsville, Erie co. N. Y. 



3377 - °| 97 type Hall. Illustrations of Devonian fossils. 1876. Gaster- 



opoda, pi. 1, fig. 7. 



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

 pi. 1, fig. 7. 



Onondaga limestone Schoharie N. Y. 



Platyceras dumosum Conrad. 



3378 10 f & type Platyceras dumosum Conrad. 3d annual 



report on the paleontology of New York. 1840. p. 205. 



Hall. Illustrations of Devonian fossils. 1876. Gaster- 

 opoda, pi. 6, fig. 1. 



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

 pi. 6", fig. 1. 



Onondaga limestone Schoharie N. Y. 



3379 JJi f-- hypotype Hall. Paleontology of New York. 1879. v - 5> 



pt 2, pi. 29, fig. 8. 



Schoharie grit Schoharie county, N. Y. 



J. Gebhard purchase 



3380 J^-jps hypotype Hall. Paleontology of New York. 1879. v. 5, 



pt 2, pi. 28, fig. 20. 



Onondaga limestone Schoharie N. Y. 



Platyceras echinatum Hall. 



3381 1 f o a type Platyceras echinatum Hall. Descriptions 



of new species of fossils from the Upper Helderberg, 

 Hamilton and Chemung groups. 186 1. p. 10. 



I Hall. Illustrations of Devonian fossils. 1876. Gaster- 



opoda, pi. 5, fig. 3,4. 

 Hall. Paleontology cf New York. 1879. V. 5, pi 2, 

 pi. 5, fig. 3, 4. 

 Tully limestone Ovid, Seneca CO. N. Y. 



Platyceras erectum Hall. 

 382 -1^.1.0 hypotype Acroculia ere eta 11 all. Geology of 

 New York; report on the 4th district. 1843. p. 174, 

 Platyceras e r e e t u in Hall. Illustrations of 

 Devonian fossils. 1876. Gasteropoda, pi. s, fig. 5, <>. 

 Mall. Paleontology of New York, 1879. v. 5, pi 1, 

 pi. 2, fig. 5, 6. 

 Onondaga limestone Ontario 



