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From
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To
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Geolocation
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Author - title
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Year
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| details | Givetian | Frasnian | Bolivia | Wood,G.D. The acritarch Proteolobus wallii, gen.et sp.nov., from the Devonian Iquiri Formation of Bolivia: A possible coenobial alga. | 1997 |
| original | Givetian | Frasnian | Argentina(Salta) | Barreda,V.D. Givetian - Frasnian acritarchs of the Noroeste Basin, Salta Province, Argentina. | 1986 |
| details | Pragian | Dino,R. et al. Lower Devonian palynomorphs from the Furnas Formation Parana Basin | 1995 |