Cymatiosphaera tryphera
- Citations total:
- 3
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| original | Givetian | Ohio | Wicander,R. et al. Systematics and biostratigraphy of the organic-walled microphytoplankton from the Middle Devonian, (Givetian), Silica Formation, Ohio, USA. | 1981 | |
| details | Givetian | Ohio | Wicander,R. A catalogue and biostratigraphic distribution of North American Devonian acritarchs. | 1983 | |
| details | Givetian | Nd | Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. | 1990 |