LIST OF ILLUSTRATIONS XXV 



PAGE 



Fig. 5. Euomphalus subrugosus Meek & Worthen, -L Illinois: 



after Meek. 

 Pleurotomaria tabulata Hall, h Indiana : after White. 

 Loxonema semicostata Meek, l. Illinois : after Meek. 

 Aviculopecten neglectus Geinitz, \ ■-. Illinois : after Meek. 

 Allorisma subcuneatum Meek & Hayden, \. Indiana : 



after White. 

 Sphenophyllum Schlotheimi Brogniart, \. Pennsylvania. 

 Pecopteris orcopteridis Schlotheim, \. Pennsylvania. 

 Lepidodendron cuneatum Lesquereux, \ (fragment of 



bark) : after Rogers. 

 Calamites Suckowi Brogniart, \. Pennsylvania : after 



Lesquereux. 

 Lophophyllum proliferum M'Chesney, \. Illinois : after 



Meek. 



American Permian Fossils 433 



Aviculopecten occidentalis Shumard, \. Kansas : after 

 C. A. White. 



Myalina permiana Swallow, -§. Kansas: after C. A. White. 



Nautilus Winslowi Meek & Worthen, \. Texas : after 

 C. A. White. 



Medlicottia Copei White, f . Texas : after C. A. White. 



Callipteris conferta Brogniart, \. Upper Barren Meas- 

 ures, West Virginia : after Fontaine and I. C. White. 

 Fig. 6. Sphenopteris coriacea F. & W., |. Upper Barren Meas- 

 ures, West Virginia : after Fontaine and I. C. White. 



American Triassic Fossils 451 



Monotis subcircularis Gabb, \. California : after Gabb. 

 Myophoria alta Gabb, \. Nevada: after Gabb. 

 Trachyceras Whftneyi Gabb, \. Nevada : after Gabb. 

 Arcestes Gabbi Meek, \. Nevada : after Gabb. 

 Clathropteris platyphylla Brogniart, \. Newark Series, 

 New Jersey : after Newberry. 

 Fig. 6. Otozamites latior Saporta, \. Newark Series, Connecti- 

 cut : after Newberry. 



Plate IX. American Jurassic Fossils 463 



Fig. 1. Pentacrinus asteriscus Meek & Hayden, fragment of stem, 



f . South Dakota : after Meek & Hayden. 

 Fig. 2. Gryphasa nebrascensis Meek & Hayden, \. South 



Dakota : after Meek & Hayden. 



Fig. 



6. 



Fig. 



7- 



Fig. 



8. 



Fig. 



9- 



Fig. 



10. 



Fig. 



n. 



Fig. 



12. 



Fig. 



13. 



Fig. 



14. 



IE VII. 



Fig. 



1. 



Fig. 



2. 



Fig. 



3- 



Fig. 



4- 



Fig. 



5- 



Plate VIII, 



Fig. 



1. 



Fig. 



2. 



Fig. 



3- 



Fig. 



4- 



Fig. 



5- 



