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1st Author:
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Work, David M.
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2nd Author:
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Boardman, Darwin R.
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3rd Author:
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Mapes, Royal H.
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Year:
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2007 |
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Title:
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The Upper Pennsylvanian (Missourian) Ammonoid Pennoceras from the North Midcontinent. |
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Reference:
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Journal of Paleontology, 81: 591-596, 6 fig. |
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Keywords:
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U.Pennsylv.,USA,Pewnnoceras |
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Link:
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