Prossek — Hamilton and Chemung Series, 

 section of xxii b. 



213 



600' 



Near the summit of the hill. 



490' 

 350' 

 230' 

 185' 

 130' 

 0' 



110' Ithaca 



U0' 



120' 



45' 



55 



130' 



B 4 . Sandstones with Spirifer mesastriaUs. 

 Coarse-grained sandstones. 

 B 8 . Sandstones with Liorhynchus. 

 W. Small Spiriferi. 

 B 1 . Shales with Hamilton fossils. 



Level of Schenevus creek. 



XXII B h . On the road leading over the steep hill south of the village 

 of Maryland are, toward the summit of the hill, exposures of the Ithaca forma- 

 tion... One at an elevation of 470 feet above the creek level at Maryland, con- 

 tains numerous species of the Ithaca fauna, as will be seen from the list : 

 1. Spirifer muoronatus (Con.), Bill. (c) 



Part of the specimens have decided mucronate extensions of the 

 shell and are typical. 



2. 



Spirifer mesasfrialis, Hall. 



(rr) 



3. 



Tropidoleptus carinatus (Con.), Hall. 



» 



4. 



Hhync7ioneUa (CamarotoecMd) Stevensiyllaji. 



(rr) 



5. 



RhyTbchonella (Camarotcechia) eximia, Hall. 



(r) 



6. 



Chottete* scitula, Hall. 



(c) 



i . 



Fragments of Gastropods. (0 Pleurotomaria, sp. 



(rr) 



8. 



jPaiceoneilo, sp. 



("0 



9. 



Coleohts acievhirn, Hall (?). 



(rr) 



10. 



Orthoceras, sp. 



(rr) 



11. 



HomalonoPiLS DeKayi (Green), Emm. 



(rr) 



XXII 7> 6 . Fifty feet higher, or 620 feet above the creek, near the 

 summit of the hill, are massive ledges of greenish-grey coarse-grained sand 

 stone, which form the base of the Oneonta sandstone. Judging from outcrops 

 to the north of the village of Maryland, the Hamilton formation runs along 



