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Organic-walled microphytoplankton from the Elden Shale(Upper Ordovician), Indiana, USA.
| Colbath, G.K. | |
| 1979 | |
| Palaeontographica, Abt.B, v.171, nos.1-2, pp.1-38 | |
| Organic-walled microphytoplankton from the Elden Shale(Upper Ordovician), Indiana, USA. |
Colbath, G.K., 1979; Organic-walled microphytoplankton from the Elden Shale(Upper Ordovician), Indiana, USA. Palaeontographica, Abt.B, v.171, nos.1-2, pp.1-38