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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 | Silurian | India(Himachal Pradesh) | Khanna,A.K. et al. Chitinozoa of the Pin Dolomite, Tethys Himalaya. | 1983 |
| details | Late Llandoverian | Saudi Arabia | McClure,H.A. Chitinozoan and acritarch assemblages stratigraphy and biogeography of the Early Palaeozoic of Northw West Arabia | 1988 |