{"refrec":{"BRefID":231670,"RR":"<b>Vandenbroucke, T.R.A.; Gabbott, S.E.; Paris, F.; Aldridge, R.J.; Theron, J.N.</b> (2009). Chitinozoans and the age of the Soom Shale, an Ordovician black shale Lagerstatte, South Africa. <i>J. Micropalaeontol. 28(1)</i>: 53-66. <a href=\"http://dx.doi.org/10.1144/jm.28.1.53\" target=\"_blank\">dx.doi.org/10.1144/jm.28.1.53</a>","BEntID":223382,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":0,"RefStringPartII":". <i>J. Micropalaeontol. 28(1)</i>: 53-66. <a href=\"https://dx.doi.org/10.1144/jm.28.1.53\" target=\"_blank\">https://dx.doi.org/10.1144/jm.28.1.53</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Vandenbroucke, T.R.A.; Gabbott, S.E.; Paris, F.; Aldridge, R.J.; Theron, J.N.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Vandenbroucke, T.R.A. <i>et al.</i>","Englishabstract":"Isolated chitinozoans from the Soom Shale Member of the Cedarberg Formation, SW South Africa are described and provide a date of the latest Hirnantian–earliest Rhuddanian. The recovered chitinozoans are typical of the latest Ordovician <i>Spinachitina oulebsiri</i> Biozone, although an earliest Silurian age is possible. They indicate a very short time span (less than 1 Ma) across the Ordovician–Silurian boundary. This is currently the highest biostratigraphical resolution attainable for the Soom Shale Lagerstätte. Correlation of the Soom Shale chitinozoans with identical assemblages in post-glacial, transgressive deposits of Northern Africa is possible; both faunas occur in shales that overlie glacial diamictites of the Hirnantian glaciation. 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