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1st Author:
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Kullmann, Jürgen 
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2nd Author:
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Nikolaeva, Svetlana V. 
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3rd Author:
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Year:
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2002 | 
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Title:
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Mid-Carboniferous Boundary and the global Lower Bashkirian Ammonoid Biostratigraphy. In: L.V.Hills, C.M.Henderson & E.W.Bamber (eds.). | 
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Reference:
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Canadian Society of Petroleum Geologists, Memoir 19: 780-795, 17 fig., Calgary, Alberta. | 
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Keywords:
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Mid-Carbon.Boundary;low.Pennsy | 
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Link:
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