Heliospermopsis
- Citations total:
- 3
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| details | Nd | Nd | Fensome,R.A. et al. Acritarchs and Fossil Prasinophytes: An index to genera, species and infraspecific taxa. | 1990 | |
| original | Helvetian | Hungary | Nagy,E. The microplankton occurring in the Neogene of the Mecsek Mountains | 1965 | |
| details | Late Paleocene | China(Kwangsi) | Yang,S. Paleocene palynology of the Shangyang Formation, Hepu Basin, Guangxi, China | 1993 |