﻿IO 



Bulletin 19 



60 



dolomitic beds of the upper Salina. Here and there Leperditice 

 are seen, but other forms are exceedingly scarce. The basal beds 

 alread}' referred to as containing Orthothetes interstriatus and 

 Whitfieldella sulcata in large numbers, it seems to us, may equal- 

 ly well be referred to the Cobleskill. 



Manlius. — The section just given shows by beds 2 to 8 in- 

 clusive the appearance of the typical Manlius of this region. 

 There are occasional Stromatopora layers just beneath the Oris- 

 kany or Onondaga as shown in PI. 5, but generally the upper- 

 most layers are evenly bedded and banded limestone. These beds 

 continue for 4 ft. or so and then Stromatopora layers appear, as 

 indicated on PI. 6. In this section, as well as the one marked 

 "5" on Plate 3, the Manlius is rather thick-bedded and very fos- 

 siliferous. Stropheodonta varistriata occurs in masses, and some 

 layers contain a large number of Spirifer vanuxemi: Holopea and 

 Tentaculites are of rare occurrence, while Megambonia aviculoidea 

 is occasionally common. 



One mile south, in the Shaliboo old quarry by the L,. V. R. R. 

 track the upper portion of the Manlius may be seen beneath the 

 Oriskany as follows: 



■Section at the Shaliboo Quarry 



Ft. Thick 



1 . Onondaga limestone 12 



2. Oriskany sandstone % 



3. Dark, impure limestone layers Yz 



4. Even bedded water-lime 4 



5. Thick beds with Stromatopora, Sp. vanuxemi, St. vari- 

 striata, Holopea, Leperditia, Meristella, and Orthothetes inter- 

 striatus 10 



6. Heavy beds, dark colored, Megambonia and Tenta- 

 culites 4 



These same fossiliferous beds are splendidly exposed % mile 

 southeast of Thompson quarry, in a somewhat extensive lime- 

 stone quarry just east of the highway. Stropheodonta varistriata 

 and Spirifer vanuxemi are the predominant forms, though a 

 Meristella (M. Icevis?) occurs here and therewith the rarer forms. 

 Here, as elsewhere, the Manlius often weathers a brownish color 

 and appears rough with the fragments of crystallized stems of 

 Crinoids. No one who has ever studied the sections north and 

 east of Manlius could fail to see the close lithological and faunal 



