I 



REPORT OF THE DIRECTOR I919 III 



Corynoides calicularis Nicholson cc 



Climacograptus strictus Rttedemann c 



Glossograptus quadrimucronatus (Hall) 



Leptobolus insignis Hall 



Worms (new species), like those at Rural Cemetery. 



. Finally, the 500 feet of black shale exposed from Arnolds bay to 

 the Trenton limestone contains : 



Mastigograptus sp. (fragment) rr 



Corynoides calicularis Nicholson r 



Diplograptus (Mesograptus) moliawkensis Ruedemann cc 



Diplograptus (Amplexograptus) macer Ruedemann r 



Diplograptus amplexicaulis Hall r 



Diplograptus vespertinus Ruedemann c 



Lasiograptus eucharis (Hall) c 



Trematis terminalis Hall rr 



Leptobolus insignis Hall r 



Orthoceras sp. rr 



This shale is also of Canajoharie age and appears to represent a 

 still higher horizon than the north end of the northern shale ex- 

 posures. Corynoides calicularis and Meso- 

 graptus mohawkensis are by far the most common 

 fossils and were collected throughout the section, at over twenty 

 stations. 



Diplograptus (Amplexograptus) macer 

 occurs in the upper beds. 



It thus appears that the entire mass of black calcareous shale at 

 Panton, representing three different horizons and altogether com- 

 prising probably as much as 1000 feet of rock, or a thickness corre- 

 sponding to the maximal thickness recorded for the Vermont 

 "Utica," belongs into the Canajoharie and not the Utica shale, and 

 is thus of Trenton age. 



On the New York side a few feet of black calcareous shale are 

 exposed on the road from the village of Ticonderoga to Addison 

 Junction (now railroad station Fort Ticonderoga). This shale con- 

 tains : 



Corynoides sp. cf. calicularis Nicholson 



Climacograptus strictus Ruedemann 



Glossograptus quadrimucronatus (Hall) 



Lasiograptus eucharis (Hall) 



Glossina trentonensis Hall c 



Lingula sp. nov. cf. obtusa Hall 



Ctenodonta sp. cf. levata (Hall) 



Aparchites minutissimus (Hall) cc 



