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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 | Tournaisian | Belgium | Stancliffe,R.P.W. et al. The acritarch genus Veryhachium Deunff,1954, emend., Sarjeant and Stancliffe,1994: A taxonomic restudy and a reassessment of its constituent species. | 1994 | |
| details | Ludlovian | Argentina | Rubinstein,C.V. Acritarchs from the Upper Silurian of Argentina:Their relationship with Gondwana | 1995 | |
| details | Frasnian | Iran | Hashemi,H. et al. Upper Devonian palynomorphs of the Shishtu Formation, Central I Basin, East-Central Iran | 1998 |