XXVI LIST OF ILLUSTRATIONS 



Quenstedioceras cordiforme Meek & Hayden, •§. South 



Dakota : after Meek & Hayden. 

 Belemnites densus Meek & Hayden, §-.. South Dakota : 



after Meek & Hayden. 

 Trigonia americana Meek, \. Montana : after Meek. 



American Cretaceous Fossils 487 



Uintacrinus socialis Grinnell, |. Niobrara Substage, 



Utah : after Clark. 

 Pseudodiadema texanum Roemer, L Comanche Series, 



Texas : after Clark. 

 Toxaster texanus Roemer, \. Comanche Series, Texas : 



after Conrad. 

 Terebratula Harlani Morton, f. Rancocas Stage, New 



Jersey: after Whitfield. 

 Terebratella plicata Say, L Navesink Stage, New Jer- 

 sey : after Whitfield. 

 Ostrea larva Lamarck, \. Navesink to Manasquan, New 



Jersey: after Whitfield. 

 Inoceramus problematicus Schlotheim, f. Niobrara Sub- 

 stage : after Meek. 

 Caprotina bicornis Meek, |. Fox Hills Substage, North 



Dakota : after Meek. 

 Fasciolaria buccinoides Meek & Hayden, ]-. Fox Hills 



Substage, North Dakota : after Meek. 

 Anchura americana Evans & Shumard, \, Fox Hills 



Substage, North Dakota: after Meek. 

 Margarita nebrascensis Meek & Hayden, \, Fox Hills 



Substage, North Dakota : after Meek. 

 Ptychoceras Mortoni Meek & Hayden, |. Fort Pierre 



Substage, North Dakota : after Meek. 

 Scaphites nodosus Owen, \. Fort Pierre Substage, North 



Dakota : after Meek. 

 Baculites compressus Say, \. Fort Pierre Substage, North 



Dakota : after Meek. 

 Belemnitella americana Morton, \, Navesink Stage, New 



Jersey : after Whitfield. 

 Nodosaria texana Conrad, enlarged. Texas : after Conrad. 

 Micrabacia americana Meek & Hayden, f. Fox Hills 



Substage, North Dakota: after Meek. 

 Fig. 18. Aucella Piochi Gabb, \. Shasta Series, California : after 



Gabb. 



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