Biorbifera sp
- Citations total:
- 2
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| details | Middle Volgian | Greenland | Hakansson,E. et al. Jurassic-Cretaceous boundary strata of the extreme Arctic (Peary Land, North Greenland). | 1981 | |
| details | Heterian | New Zealand(N.I.) | Helby,R.J. et al. A preliminary biostratigraphic study of Middle to Late Jurassic dinoflagellate assemblages from Kawhia, New Zealand. (In: Palynological and Palaeobotanical Studies in Honour of Basil E. Balme. P.A. Jell and G. Playford, editors) | 1988 |