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Geolocation
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Author - title
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Year
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| details | Llanvirnian | Early Ashgillian | Finland | Uutela,A. Age and dispersal of sedimentary erratics on the coast of southwestern Finland. | 1989 |
| details | Caradocian | USSR(Estonian SSR) | Uutela,A. Age and dispersal of sedimentary erratics on the coast of southwestern Finland. | 1989 | |
| details | Llanvirnian | Early Caradocian | Baltic | Nolvak,J. et al. Ordovician chitinozoan zones from Baltoscandia | 1993 |
| details | Llandeilian | Baltic | Locquin,M.V. Thie Chitinomycetes of chitinozoa Paleozoic fossils | 1976 |