STRATIGRAPHY OP FOSSILIFEROUS MEMBERS 113 



Plantae 



Lophcphyllum profundum (Milne-Edwards and Haime) 



Crinoid segments 



Orbiculoidea missouriensis (Shumard) 

 Derbya crassa (Meek and Hay den) 

 Chonetes mesolobus Norwood and Pratten 

 Productus semireticulatus (Martin) 

 Marginifera muricata var. missouriensis Girty 

 Marginifera wabashensis (Norwood and Pratten) 

 Spirifer cameratus Morton 

 Spirifer opimus Hall 

 Squamularia perplexa (McChesney) 

 Ccmposita subtilita (Hall) 



The following collection was made along Bieler Run (Locality 78) : 



FOSSILS FROM THE UPPER MERCER LIMESTONE 



Lophophyllum profundum (Milne-Edwards and Haime) 

 Crinoid segments 



Derbya crassa (Meek and Hay den) 



Chonetes mesolobus Norwood and Pratten 



Pustula nebraskensis (Owen) 



Marginifera muricata var. missouriensis Girty 



Marginifera wabashensis (Norwood and Pratten) 



Squamularia perplexa (McChesney) 



Composita subtilita (Hall) 



FOSSILS FROM THE SOFT SHALE ABOVE THE LIMESTONE 



Plantae 



Lophophyllum profundum (Milne-Edwards and Haime) 



Crinoid segments 



Derbya crassa (Meek and Hay den) 



Chonetes mesolobus Norwood and Pratten 



Productus semireticulatus (Martin) 



Pustula nebraskensis (Owen) 



Marginifera muricata var. missouriensis Girty 



Marginifera wabashensis (Norwood and Pratten) 



Spirifer cameratus Morton 



Spirifer opimus Hall 



Squamularia perplexa (McChesney) 



Composita subtilita (Hall) 



Parallelodon tenuistriatus (Meek and Worth en) 

 Aviculopecten coxanus Meek and Worthen 

 Acanthopecten carboniferous (Stevens) 

 Astartella concentrica (Conrad) 



