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Henry, Gordon & Schweinfurth | 
1985 | 
Significance of the goniatite Bilinguites eliasi and associated biotas, Parkwood Formation and Bangor Limestone, northwestern Alabama. [T.W.Henry, M.Gordon, S.P. Schweinfurth & W.H.Gillespie].	 
Journal of Paleontology, 59 (5): 1138-1145, 4 fig., Lawrence, KS.	 
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