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Geolocation
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Author - title
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Year
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| details | Llandeilian | Caradocian | USSR(Taldy-Kurganskaya) | Zaslavskaya,N.M. et al. Ordovician chitinozoa of South Djungaria. (In: Problematic Fossils of the USSR. B.S.Sokolov, editors) | 1990 |
| details | Middle Caradocian | Belgium | Samuelsson,J. et al. Ordovician chitinozoan biozonation of the Brabant Massif, Belgium. | 2000 | |
| details | Caradocian | Early Ashgillian | Russia(Siberia) | Sennikov,N.V. et al. Synthesis of the graptolite and chitinozoan scales for the Altai-Salair Ordovician Basin (Siberia, Russia). | 2003 |