| link
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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 | Tremadocian | France(Herault) | Martin,F. Acritarchs of the Lower Ordovician of the Montagne Noire (Herault, France). | 1972 | |
| details | Late Cambrian | Belgium | Vanguestaine,M. The Late Cambrian age of the Upper RN2B from the Stavelot area. (In: Mikrofossilii Drevneishikh Otlozhenii. T.F.Vozzhennikova and T.B.Timofeev, editors) | 1973 | |
| details | Early Ordovician | Poland | Timofeev,B.V. Micropaleophytological research into ancient strata. | 1966 |