Urnochitina sp
- Citations total:
- 2
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| original | Siegenian | Emsian | W.Germany(N.Rhine) | Eschghi,I. et al. Stratigraphy and Palaogeography of the Siegenian and Emsian of the Aachen-Ahrtal Region | 1984 |
| details | Pridolian | Guinea | Villeneuve,M. et al. New palaeontological data from the Palaeozoic series of the Bove Basin, (Guinea, West Africa); Stratigraphical consequences. | 1989 |