Pterospermella sp.4
- Citations total:
- 1
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| original | Early Maestrichtian | Arctic Ocean | Firth,J.V. et al. An Early Maestrichtian organic-walled phytoplankton cyst assemblage from an organic-rich Black Mud in core Fl-533, Alpha Ridge: Evidence for upwelling conditions in the Cretaceous Arctic Ocean | 1998 |