772 



NORTH AMERICAN INDEX FOSSILS. 



Midwayan to Claibornian from Alabama to Texas; Nanjemoy 

 of Maryland (?). 

 548. L. pagodiformis Heilprin. (Fig. 11 24, b.) Eocenic. 



Whorls embracing to angulation, the flat tubercles of which 

 show just above the suture; shoulder concave, steep, second angu- 

 lation wanting, canal straight. 



Midwayan and Chickasawan of Alabama. 



CLIX. Fasciolaria Lamarck. 



Protoconch and the young whorls typically of the fusoid type, 

 later whorls ribbed and spiraled, with a sharp angulation and flat 

 shoulder or with rounded whorls. Canal shorter than in Fulgur 

 and spire longer. Columella with two or three oblique plications in 

 anterior end, and in typical forms with a strong, oblique anterior 

 angulation. Cretacic-Recent. 

 549. F. (Cryptorhytis) utahensis (Meek). (Fig. 1125.) Cretacic. 



Whorls embracing to shoulder angle, shoulder of later whorls 

 flat, earlier ones rounded; ribs faint or condensed to tubercles; 

 body whorl gradually contracting to slightly bent canal. Colu- 



Fig. 1 125. Fasciolaria [Cryp- 

 torhytis) utahensis. (After Stan- 

 ton. 1 ) 



Fig. 1 126. Fasciolaria {Fiestrocheilus) 

 culdertsoni, views of two fragmentary speci- 

 mens ; a, type broken below ; b, not show- 

 ing columellar plaits and with broken spire. 

 (After Meek.) 



mella with one strong fold so far back that it is hardly visible in 

 a perfect specimen. 



Colorado formation of Utah and Colorado. (Pugnellus sand- 

 stone.) 



