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Upper Cretaceous and Palaeocene plant microfossils and Paleocene dinoflagellates and hystrichosphaerids from southwestern Dakota,
| Stanley, E.A. | |
| 1965 | |
| Bull. Amer. Paleont., 49 (222) vol.6 pp.1-18 pl.13 | |
| Upper Cretaceous and Palaeocene plant microfossils and Paleocene dinoflagellates and hystrichosphaerids from southwestern Dakota, |
Stanley, E.A., 1965, Upper Cretaceous and Palaeocene plant microfossils and Paleocene dinoflagellates and hystrichosphaerids from southwestern Dakota, Bull. Amer. Paleont., 49 (222)