GEOLOGY AND PALEONTOLOGY OF THE SCHOHARIE VALLEY 285 



Feet Total 



Orishany sandstone occurs in the woods on top of 

 the hill south of Indian Ladder cliff, where there 

 are numerous weathered blocks. Again it is well 

 shown to the east of this hill on the ridge west of 

 the house and brook mentioned above. Its thick- 

 ness in these outcrops varies from 1 foot to 1 

 foot, 4 inches 1-973^ 



Above the house on the eastern side of the brook the top of 

 the Becraft limestone, capped by the Oriskany sandstone, is 

 well shown. The shaly limestone may also be seen to excellent 

 advantage along the banks of Black creek to the north of the 

 Indian Ladder road. 



Feet Total 



New Scotland and Becraft. Largely covered slope to 

 the south of the cliff and east of the stream and 

 road. In the field are various outcrops of the 

 thicker beds of the [New Scotland] shaly lime- 

 stone, and in the edge of the woods the top of 

 Becraft limestone is shown. Much better out- 

 crops of the shaly limestone, however, occur to 

 the east of these woods in the field and along 

 the western bank of a small stream furnishing 

 an excellent collecting place. The following spe- 

 cies were obtained at this locality 160-972^ 



1 Spirifer rnacropleura (Con.) Cast, c 



2 S. perlamellosus Hall c 



3 S. cyclopterus Hall a 



4 Leptaena rbornboidalis (Wilckens) H. cC- C. c 



5 Stropbonella cavumbona (Hall) H. & C. rr 



6 Ortbotbetes woolwortbanus (Hall) II. & C. rr 



7 Meristella laevis (Van.) Whitfield c 



8 Nucleospira ventricosa Hall r 



9 Parazyga deweyi (Hall) H. & C. rr 



10 Trematospira globosa Hall r 



11 Uncinulus vellicatus (Hall) H. & C. r 



12 Rhipidomella oblata (Hall) H. & C. r 



13 Cypricardinia lamellosa Hall rr 



14 Platyceras ventricosnm Con. rr 



15 P. retrorsum Hall (?) rr 

 1G Dalmanites pleuroptyx (Green) rr 



17 Favosites couicus Hall it 



18 F. spbaericus Hall rr 



19 Streptelasma strictum Hall rr 



Coeymans limestone; the massive strata forming t lie 

 upper part of the vertical cliff. Beautifully 

 shown in the cliff on the western side of the road 

 . . . The measurements along this cliff vary 

 from 49 to 52 feet for the thickness of the Pen- 

 tamerus [Coeymans] 52-812J 



