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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 | Aalenian | Bajocian | Switzerland | Burkhalter,R.M. et al. The "Dogger B", (Late Aalenian), from the Herdern-1, Berlingen-1 and the Kreuzlingen-1 Boreholes, (Northeast Switzerland). | 1997 |
| details | Early Toarcian | Russia(Siberia) | Zakharov,V.A. et al. Boreal Zonal standard and biostratigraphy of the Siberian Mesozic. | 1997 | |
| details | Early Aptian | Antarctica | Riding,J.B. et al. The age of the Base of the Gustav Group in the James Ross Basin Antarctica | 1998 |