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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 | Late Llanvirnian | Argentina(San Juan) | Vergel,M.D.M. et al. Ordovician palynomorphs of Argentina: An integrated approach. (Aspects of the Ordovician System in Argentina.) | 2002 | |
| details | Ashgillian | England(Cumberland) | Vandenbroucke,T. et al. Chitinozoans from key sections in the Upper Ordovician Series: new GSSP's and classical British sections. (In: Ordovician from the Andes. G.L.Albanesi,M.S.Beresi,S.H.Peralta,editors) | 2003 |