Nereidavus concavibasus
- Citations total:
- 2
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| original | Givetian | Middle Frasnian | France(Garonne,Haute) | Taugourdeau,P. Scolecodonts of the Frasnian of Boulogne | 1971 |
| details | Givetian | France(Garonne,Haute) | Taugourdeau,P. Scolecodonts of the Givetian of Boulogne | 1970 |