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56 HVL 265/132
AMSDEN, Thomas W.
Upper Bromide Formation and Viola Group (Middle and Upper Ordovician) in eastern Oklahoma . part I-III / Thomas W.Amsden, Walter C.Sweet. -- Norman : University of Oklahoma, 1983. -- 76s., : obr. -- In: Bulletin. -- Oklahoma Geological Survey, 1983, 132. -- bibl.
biostratigraphy - lithostratigraphy - paleoenvironmental realtionships - Middle and Late Ordovician - Oklahoma - Bromide Formation - Viola Group
56
59141
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