Clarke — Oneonta, Ithaca and Portage Groups. 



77 



ProducteUa speciosa. 



XIV 4 . Soft shales at the base of the last stairs but one leading to the 

 « Bridal Veil " falls (see Plate V) : 

 Manticoceras Patersoni. 

 Loxonema JSFoe (cc). 



Lunulicardiiun (?), a peculiar undescribed species of a new generic form, 

 with sharp fasciculate plications and a series of irregular spinous processes on 

 the anterior margin. This form is not of infrequent occurrence in the Naples 

 section, both in the Styliola limestone and in the Portage shales. Elevation, 

 200 feet above entrance. 



ATT 75 . Soft shales at the base of " Whispering Falls," elevation 242 

 feet (Plate VI, 4), contain : 



Ma nticocei 'as Pater so n i. 



Orthoceras. 



Atrypa reticularis. 



Cyrtina Hamiltonensis. 



Cladochonus. 



XIV 6 . At an elevation of 264 feet above the entrance, is the "Tunnel," an 

 opening and passageway along a joint in a projecting cliff (Plate VI, 5). Here 

 occurs a sandy layer with small calcareous concretionary masses, containing 



St yliol in a Jiss urella (cc). 



Stropli alosia truncata. 



Chonetes lepida. 



Ambocoelia umbonata. 



Cladochon us. 



Twelve feet below this horizon, at the foot of the stairs leading from the 

 " Tunnel," occur : 



Ma it t i< ■<>( -eras Pater soi i i. 

 Chonetes scitida. 

 ProducteUa spin uli casta (cc). 

 Cladochonus. 



XIV 7 . "Glen Chaos;" elevation 253 feet. Here has been an interest ini: 

 displacement of the rocks, a great mass having fallen along a joint plane for 

 fully seventy -five feet, filling the gorge with upturned strata. These dis 

 placed rocks are, in part, soft, compact shales with fossils, and others are sandy 

 layers with calcareous concretions containing essentially the same species. 

 The fossils obtained are 



St roph alosia truncata (cc). 



