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Geolocation
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Author - title
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Year
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details | Strunian | Wales(Glamorgan) | Davies,J.R. et al. Palaeoenvironments and palynofacies of a pulsed transgression; The Late Devonian and Early Dinantian (Lower Carboniferous) rocks of southeast Wales. | 1991 | |
original | Ludlovian | Spain | Cramer,F.H. et al. Taxonomic considerations on the acritarchs of the Middle and Upper Silurian of northern Spain. | 1968 | |
original | Givetian | Frasnian | Argentina(Salta) | Barreda,V.D. Givetian - Frasnian acritarchs of the Noroeste Basin, Salta Province, Argentina. | 1986 |