Dekayia distincta occurs in the Upper Ordovician of Ontario, Canada.
Images from: Fritz, M.A., 1982. Redescription of type specimens of species of the bryozoan genera Dekayia, Homotrypa, and Stigmatella from Upper Ordovician Rocks along Workmans's Creek, Ontario. Life Sciences Contributions, Royal Ontario Museum, 132: 1-32.
| Tangential Section; Image 4.2 mm wide |  |
| Longitudinal Section; Image 4.2 mm wide |  |
| Tangential Section; Image 1.5 mm wide |  |
| Longitudinal Section; Image 2.6 mm wide |  |
Original description: Dekayia appressa distincta Fritz, 1925.
Type Specimen: ROM 1308HR
Locality: Ordovician: Dundas Formation, Workman's Creek, Ontario
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