XXIV LIST OF ILLUSTRATIONS 



PAGE 



Fig. 10. Goniatites Vanuxemi Hall, L Marcellus Stage, New 

 York : after Hall. 



Fig. ii. Homalonotus Dekayi Green, 4-. Hamilton Stage: New- 

 York : after Hall. 



Fig. 12. Phacops rana Hall, L Hamilton Stage, New York: 

 after Hall. 



Plate V. American Lower Carboniferous Fossils . . .419 



Fig. 1. Lithostrotion canadense Castelnau, f. St. Louis Stage, 

 Iowa : after Hall. 



Fig. 2. Pentremites pyriformis Say, j. Chester Stage, Illinois : 

 after Hall. 



Fig. 3. Productus burlingtonensis Hall, L Burlington Substage, 

 Iowa : after Hall. 



Fig. 4. Chonetes Fischeri Norwood & Pratten, L Waverley Stage, 

 Iowa : after Hall. 



Fig. 5. Spirifera plena Hall, |. Burlington Substage, Iowa : after 

 Hall. 



Fig. 6. Onychocrinus exsculptus Lyon & Cassiday, L Keokuk 

 Substage, Indiana : after Hall. 



Fig. 7. Melonites multipora Owen & Norwood, \. St. Louis 

 Stage, Missouri : after Roemer. 



Fig. 8. Archimedes Wortheni Hall, L Warsaw Substage, Illi- 

 nois : after Hall. 



Fig. 9. Platyceras infundibulum Meek & Worthen, f. Keokuk 

 Substage, Illinois: after Meek & Worthen. 



Fig. 10. Bellerophon subkevis Hall, -L Warsaw Substage, Indi- 

 ana: after Hall. 



Fig. 11. Goniatites ixion Hall, L Waverley Stage, Indiana : after 

 Hall. 



Fig. 12. Conularia missouriensis Swallow, ^. St. Louis Stage, 

 Missouri: after White. 



Fig. 13. Phillipsia bufo Meek & Worthen, f. Keokuk Substage, 

 Indiana : after Meek & Worthen. 



Plate VI. American Upper Carboniferous Fossils . •. . 423 



Fig. 1. Fusulina ventricosa Meek & Hayden, f. Illinois: after. 



Meek & Hayden. 

 Fig. 2. ^Esiocrinus magnificus Miller & Gurley, \. Missouri. 

 Fig. 3. Spirifera camerata Morton, f . Iowa : after Hall. 

 Fig. 4. Productus punctatus Martin, \. Indiana: after White. 



