Foraminifera from the Arctic Slope of Alaska; Part 3, Cretaceous Foraminifera
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Geology topics
Helen Tappan
Publications and source records attributed to Helen Tappan.
Foraminifera from the Arctic Slope of Alaska; Part 2, Jurassic foraminifera
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Foraminifera from the Arctic Slope of Alaska; general introduction and Part 1, Triassic foraminifera
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