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Two new tertiary dinocyst genera from the Norwegian Sea: Lophocysta and Evittosphaerula
| Manum, S. | |
| 1979 | |
| Review of Palaeobotany and Palynology vol.28 pp.237-248 pl.2 | |
| Two new tertiary dinocyst genera from the Norwegian Sea: Lophocysta and Evittosphaerula |
Manum, S., 1979; Two new tertiary dinocyst genera from the Norwegian Sea: Lophocysta and Evittosphaerula. Review of Palaeobotany and Palynology vol.28 pp.237-248 pl.2 Two new dinoflagellate cyst morphotypes of gonyaulacacean affinity are described from Upper Oligocene and Lower Miocene sediments of the Norwegian Sea and assigned to new, monotypic genera: Lophocysta, distinguished by possessing a prominent ventral periphragm expansion enclosing a sulcal pericoel; and Evittosphaerula, whose sole resistant wall structure is a parasutural network.