20 



NEW YORK STATE MUSEUM 



According to Prosser and Cumings the list of 



below Prospect, 

 fossils includes: 



1 Monticulipora (Prasopora) lyco- 



perdon (Say) 



2 Escharopora recta Hall 



3 Trematis terminalis (Emmons) 



Hall 



4 Rafinesquina alternata (Con.) 



H. & C. 



5 R. alternata var. nasuta Con. 



6 R. deltoidea (Con.) H. & C. 



7 Strophomena cf. scofieldi Winch. 



& Schuch. 



8 Orthis (Platystrophia) biforata 



(Schl.) Bill. 



9 0. (Dalmanella) testudinaria Dal. 



10 Plectambonites sericeus (Sow.) 



H. & C. 



1 1 Zygospira recurvirostra Hall 



12 Asaphus platycephalus Stokes 



13 Calymmene callicephala Green 



14 Ceraurus pleurexanthemus Green 



15 Leperditia fabulites Con. 



16 Endoceras proteiforme. Hall 



1 7 Orthoceras sp. 



18 Bellerophon bilobatus (Sowerby) 



19 Dendrocrinus gracilis (Hall) 



20 Murchisonia gracilis (Hall) 



2 1 Stictopora cf. acuta Hall 



22 Crinoid segments g 



Highly contorted strata between undisturbed strata may be seen 

 between the lower and upper portion of High fall, and also along 

 the footpath especially opposite the crest of High falls. These 

 phenomena will be discussed later under a separate heading. 



Another Trenton section ranking next in importance to the one 

 just described is that at Gravesville and extending from the village 

 for more than a mile up Mill creek. A thickness of nearly 200 feet 

 is here shown with neither top nor bottom exposed. 



At Grant and extending for a half mile down Black creek a good 

 section (20 to 30 feet) of lower to middle Trenton beds may be 

 seen. 



The upper Trenton limestones are well shown at Hinckley; be- 

 tween Trenton and Holland Patent ; north and northeast of Steuben 

 Valley ; along Town Line (Cincinnati) creek from Prospect station 

 (R. W. & O.) to Remsen; in the vicinity of Honnedaga and Bard- 

 well Mill; and south of Alder Creek station. Besides these many 

 smaller outcrops were found. 



The upper, gray, coarse crystalline beds form the surface rock 

 (largely covered by glacial drift) over most of the western portion 

 of the Trenton limestone area. They are especially well shown 

 near the Utica shale contact line. 



Dolgeville (upper Trenton) shales. A series of alternating thin 

 bedded limestones and shales, lying between the Trenton proper and 

 the Utica shale, and found in the Little Falls district is called by 

 Cushing the Trenton-Utica Passage Series. 1 Recently, however, 

 Cushing has proposed the name Dolgeville (upper Trenton) shales 



1 Op. cit. p. 31-33- 



