Heliodinium sp
- Citations total:
- 2
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| details | Hauterivian | Aptian | Canada(NWT,Mackenzie) | Brideaux,W.W. et al. Biostratigraphic determinations from the subsurface of the District of Franklin and MacKenzie and the Yukon Teritory | 1976 |
| details | Early Berriasian | England | Dжrhжfer,G. et al. Palynostratigraphic contributions to correlation of Jurassic-Cretaceous boundary strata in Germany and England. | 1977 |