522 



Annals of the Carnkgif, Museum. 



Section D, Valcoiir Island. 



This section begins back of the farmhouse on the northwest corner 

 of the Island, and extends to the point at the north end, where the 

 Black River limestone is exposed. 1), is the lowest exposed layer to 

 the north of the great fault, which crosses Valcour Island from the 

 upper farm-house to Bay Beauty. 



I) . Heavy-bedded, im])ure nodular limestone with fucoidal mark- 

 ings. I'^xposed at base of cliff along shore near the farm-house. 



7 feet = 7 feet. 



Malocystitcs sp. r, 

 Pl(Csiomys p/atys c, 

 Rafinesquina champlaincnsis c, 

 Canien'/Ia /(>ni:;irc>stris r, 

 Canierella varians r, 

 Modiolopsis sp. r, 

 Lophoxpira peniny;iilata r, 

 Holflpea scrutator r, 

 Arctiinacclla ? deforniata c, 



Oncoccras sp. r, 

 Ortlioccras sp. r, 

 Asaphiis alplia r, 

 Isotclus flbtusinn r, 

 I sate I us karri si r, 

 Isotclus angusticaudnni r, 

 Tlialrops ovata r, 

 Ptcrygoinctopus annulatus r, 

 Lcpcrditia canadensis c. 



RapJiistonia staniineuni c, 



I) . Thin-bedded, shaly and nodular limestone with thin layers of 



shale. 



PalcEocystitcs tenuiradiatus c, 

 F/iesioinys plafys r, 

 Rafincs<iuina chainplainensis c, 

 Camarota'cliia pristinus c, 

 Canierella lony^irostris c, 

 Modiolopsis sjj.r, 

 Lophospira pcrany;ulata c. 



1 8 feet 6 inches =25 feet 6 inches. 



Arciiinacclla / deforniata , 

 Bucania sulcatina r, 

 Helicotoma vagrans r, 

 Maclurites magniis c, 

 Ortlioceras sp. r, 

 Isotclus liarrisi c, 

 I^cperditia canadensis c. 



D.J. Impure shaly limestone. 2 feet 9 inches = 28 feet 3 inches. 



Malocystitcs sp. c, 

 Coral sp. ind. r, 

 Monotrypella sp. c, 

 Hebertella vulgaris c, 

 Rafinesquina champlainensis r, 

 Bucania sulcatina r, 

 Lophospira suhabbreviata r, 

 Maclurites magnus r 

 Plicsioniys platys r, 



Ortlioceras rcctiannulatuni r, 

 Ortlioceras sp. r, 

 Cyrtoceras boycii r, 

 Isotelus liarrisi r, 

 Ilhcnus globosus r, 

 Jllienus erastnsi r, 

 PVialeops ovata r, 

 Pcpcrditia canadensis r. 



