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Article Title Graptolite biozonation of the Wenlock Series (Silurian) of the Builth Wells district, central Wales / J.A.Zalasiewicz & M.WilliamsArticle
Name(s) Zalasiewicz, J.A. (Jan A. (BGS 1979-1994)
Williams, M. (Mark (BGS)
Invalid ISN X781055686
Classmarks 00172 (BGS)
Subjects GMAGAI; Biostratigraphy; Biostratigraphic correlation; Invertebrate paleontology; Hemichordata; Lower Palaeozoic; Silurian; South Wales; Powys; EW196;
Language English;
Availability
Barcode Location Shelf Shelfmark Status Category
7801745238BGS KeyworthLibrary00172AvailableReference