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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 | Ordovician | Baltic | Myannil,R.M. The Zonal distribution of Ordovician chitinozoans in the eastern Baltic area. | 1972 | |
| details | Ordovician | Silurian | Baltic | Eisenack,A. Chitinozoa of the Baltic Region. | 1968 |
| details | Ordovician | Baltic | Eisenack,A. Additional contribution about chitinozoa. | 1976 | |
| details | Early Ashgillian | Baltic | Paris,F. et al. A revised chitinozoan classification | 1999 | |
| details | Late Ordovician | Africa | Achab,A. Provincialism of Ordovician chitinozoans. | 1988 |