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Geolocation
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Author - title
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Year
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| details | Llandoverian | USSR(Siberia) | Zaslavskaya,N.M. Silurian of Siberian Platform chitinozoa | 1983 | |
| details | Ludlovian | USSR(Siberia) | Zaslavskaya,N.M. Silurian of Siberian Platform chitinozoa | 1983 |