162 GEOLOGICAL SECTION OF THE HAMILTON ASSOCIATION. 



Specimen. Formation. Locality. Prov. 



4 Spirifera raricosta Corniferous Hagersville Ont 



4 Spirifera fimbriata " " " 



i Spirifera duodenaria " " " 



i Spirifera Accuminata " " " 



4 Orthis Livia 



4 Pentamerus aratis " " " 



i Loxonema Catterani " " " 



3 Orthoceras (fragments) " " " 



5 Athyris Clara, i with coil " " " 



2 Athyris Scitula 



i Athyris uniplicata " " 



6 Atrypa reticularis " " 



2 Atrypa undetermined " " " 



io Species of gastropods " " " 



2 Leptocaelia " " " 



2 Rhynchonella tethys " " " 



2 Rhynchonella thalia " " " 



2 Charionella 



2 Retzia Eugenia " " " 



2 Centronella 



2 Undetermined specimens " " 



i Phillipsastrea gigas " " " 



i Favosites hemispherica " " 



Polyzoa, several specimens " 



A remarkable specimen of Erido- 

 phyllun 



1 Base Of the formation Oriskany sandstone Hag ^SSy. and Ont. 



i Favosites Gothlandica " " " 



i Favosites hemispherica " " " 



i Favosites basaltica " " " 



i Favosites Polymorphia " " 



i Cystiphyllum Senecaense " " " 



i Zaphrentis spatiosa " " " 



i Zaphrentis prolifica " " " 



i Michelina Convexa " " " 



i Heliophyllum exiguum " " " 



2 Trilobite fragments " " " 



