REPORT OF THE STATE PALEONTOLOGIST 1902 1059 



8 Orthothetes radiatus Fischer. Kare. 



9 O. woolworthanus Hall. Common. 



10 Stropheodonta becki Hall. Common. 



11 Strophonella headlevana Hall. Common. 



12 Leptaena rhomboidalis (Wilckens). Common. 



13 Spirifer niacropleura ( Conrad) . Common. 



14 S. perlamellosus Hall. Common. 



15 E a t o n i a peculiarly Conrad. Rare. 



16 E. m e d i a 1 i s Yanuxem. Frequent. 



17 Meristella cf . a r c u a t a Hall. Rare. 



18 M. subquadrata Hall. Rare. 



19 Anastrophia verneuili Hall. Rare. 



20 Diaphorostoma ventricosum (Conrad). 

 Large individuals. 



21 P 1 a t y c e r a s bisulcatum Hall. 



22 P. ventricosum Conrad. 



23 P. gebhardi Conrad. 



21 Platyceras sp. Several uncoiled forms which repre- 

 sent the next stage after P. gebhardi cf. P. magnificum 

 of the Oriskany. 



25 Dalmanites m i c r u r u s Green. Frequent. 



26 D. n a s u t u s Conrad. Frequent. 



27 D. pleuroptyx? Green. A single specimen, some- 

 what distorted by cleavage across the bed, lying in such a position 

 that the compression shortened and widened it. 



In the quarry face of the Jonesburg stone-crusher, about 25 

 feet of the New Scotland beds are exposed. They are quite cal- 

 careous and heavy bedded where freshly broken. In the lower 

 portion the characteristic fossils are common, i. e. Spirifer 

 niacropleura, Strophonella headlevana, Stro- 

 pheodonta becki, Leptaena rhomboidalis, etc. 



The best measurement obtained of the thickness of the New 

 Scotland was 68 feet. This was taken just north of fault 11 

 where the whole formation is exposed on end between the 

 Coeymans and the Becraft limestones. On the hillside above 

 fault 21, the measured thickness was 70 feet to 75 feet. Wher- 

 ever these beds are but slightly inclined, they form a series 



