Hystricosporites triangulatus
- Citations total:
- 2
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| original | Emsian | Givetian | W.Germany(Rhineland) | Tiwari,R.S. et al. Palynological studies in the Lower and Middle Devonian of the Prum Syncline, Eifel (Germany). | 1975 |
| details | Givetian | China(Yunnan) | Lu,L.-C. Middle Devonian microflora from Haickou Formation at Shijiapo in Zhanyi of Yunnan, China | 1988 |