EARLY DEVONIC HISTORY OF NEW YORK AND EASTERN NORTH AMERICA 65 



East branch of Penobscot river 

 Below the dam at the outlet of Matagamon lake are many outcrops of 

 thick-bedded sandstones. 



3447 Is ]/ 2 mile below the dam on the west side of the river. 

 34 j.8 Two miles below dam : 



Homalonotus vanuxemi Tentaculites perceensis 



3449 Little Stair falls ; no fossils. 



3450 Stair falls, 5 miles below the lake; shaly sandstone; strike 

 ne., dip 45 nw. P t e r i n e a r a d i a 1 i s and other fossils. 



3451 Haskell Rock pitch (" Upper Falls" of Hitchcock). 



Here a coarse conglomerate crosses the river and extends for 

 ^ mile. It has afforded no fossils. Professor Hitchcock makes the fol- 

 lowing comment : "This rock must be about 150 feet thick and is evidently 

 the base of the following series of rocks to be described." (Oriskany 

 sandstones) 



3452 Fossils collected from loose blocks at Cunningham's camp, 4 

 miles southwest of Matagamon lake and 1 mile west of the river. This 

 camp is in No. 5, R. 8, and appears to be practically the same place as that 

 referred to by Hitchcock as "Johnston's camp," no longer known. Hitch- 

 cock characterized this as the "finest locality of Devonian fossils we have 

 yet seen in Maine, but the ledges do not appear ; the specimens are entirely 

 loose fragments whose source must be very near" [p. 402]. Mr Nylander 

 collected these species : 



Dalmanites pleuroptyx Platyceras cf. calantica 



D. ploratus P. sp. 



D. s/>. Pterinea radialis var. 



Diaphorostoma desmatum Palaeopinna flabellum 



D. ventricosum Spirifer arenosus 



Cyrtolites expansus Hipparionyx proximus 



Plectonotus derbyi Rensselaeria ovoides 



