Fourteen ammonites, twenty pelecypods, one gastropod, and one crinoid are described and illustrated from four nearly complete sections of the Wapiabi formation in the Alberta foothills between townships 5 and 45. The fauna contains representatives of the five Inoceramus and Scaphites zones of the Wapiabi shale established by Jeletzky (1956). Most of the zonal indices have restricted stratigraphic ranges which can be traced throughout the foothills.

The lithology of the members and sub-members of the Wapiabi formation is discussed, and their local or regional significance is indicated.

The characteristics of the Cardium-Wapiabi contact are described, and a comparison is made between the Transition beds at the top of the Wapiabi and the overlying Brazeau or Belly River beds.

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