Polygonium echinatus
- Citations total:
- 2
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| original | Early Caradocian | Argentina(San Juan) | Ottone,E.G. et al. Palynomorphs conodonts and associated Graptolites from the Ordovician Los Azules Formation, Central Precordillers, Argentina | 1999 | |
| details | Llanvirnian | Caradocian | Argentina(San Juan) | Vergel,M.D.M. et al. Ordovician palynomorphs of Argentina: An integrated approach. (Aspects of the Ordovician System in Argentina.) | 2002 |