GEOLOGY AND PALEONTOLOGY OF THE SCHOHARIE VALLEY 239 



Feet Inches 



e 4 More or less arenaceous lime mudrock similar 



to bed 5. It is riibbly from the presence of 



coral fragments. It is tliin bedded with the 



bedding planes well marked. Contains F. 



h e 1 d e r b e r g i a e precedent, often 



overturned. To base of quarr}' 1 



From the loAver three beds Ilartnagel obtained the following 

 Cobleskill fauna, which is thus seen to extend up into the Ron- 

 dout. . 



1 Favosites helderbergiae prececlens 



2 Stromatopora cf. antiqua 



3 Camarotoechia litclifieldensis 



4 Orthotlietes interstriatus 



5 Camarotoechia? lamellata 



6 Spirifer coralliiiensis 



7 Wliitfieldella nncleolata 



8 Pterinea seci"iriformis 



9 Orthoceras 



10 Beyrichia 



11 Leperditia cf. joiiesi 



Feet Indies 



Total exposure of Rondout 8 8 



Twenty feet higher in the field are quarried 2 feet and 6 inches 

 of dark lime mudrock, the upper 6 inches of which contain 

 Spirifer vanuxemi, Leperditia alta, etc. The 

 rock has a ringing sound when struck with a hammer, and be- 

 tween the layers are found occasional shaly streaks. It belongs 

 to the Manlius beds. 



3 Section of lower part of East hill at Mix and O'Reilly's quarry 



Plate 16 

 The section begins at the road above the quarry and continues 

 downward to the lowest exposures near tlie stone crusher. 



Coeymans Feet inches 



h 1 Coeymans limestone, about 15 



Transition beds 



g 4-7 Covered 1-5 



g 3 Lime mudrock bed 6 



g 22 Covered 3 



