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Late Cretaceous (Campanian) organic-walled micro- plankton from the interior plains of Canada, Wyo- ming and Texas: biostratigraphy, palaeontology and palaeoenvironmental interpretation.
| Harker, S.D., Sarjeant, W.A.S. and Caldwell, W.G.E. | |
| 1990 | |
| Palaeontographica Abt. B vol.219 pp.1-243 figs.64 pl.13 | |
| Late Cretaceous (Campanian) organic-walled micro- plankton from the interior plains of Canada, Wyo- ming and Texas: biostratigraphy, palaeontology and palaeoenvironmental interpretation. |
Harker, S.D., Sarjeant, W.A.S. and Caldwell, W.G.E., 1990; Late Cretaceous (Campanian) organic-walled micro- plankton from the interior plains of Canada, Wyo- ming and Texas: biostratigraphy, palaeontology and palaeoenvironmental interpretation. Palaeontographica Abt. B vol.219 pp.1-243 figs.64 pl.13