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1by Dalbec, Aubrey CharlotteSubjects: “...Landforms--Illinois--De Kalb County...”
Published 2015
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Thesis -
2by Field Museum of Natural HistorySubjects: “...Museums--Illinois...”
Published 1941
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10by Bergstroem, Stig M., Saltzman, Matthew M., Schmitz, BirgerSubjects: “...Missouri-Illinois...”
Published in Geological Magazine (2006)
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11by Field Museum of Natural HistorySubjects: “...Museums--Illinois...”
Published 1957
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12by Field Museum of Natural HistorySubjects: “...Museums--Illinois...”
Published 1934
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14by Field Museum of Natural HistorySubjects: “...Museums--Illinois...”
Published 1930
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15by Field Museum of Natural HistorySubjects: “...Museums--Illinois...”
Published 1948
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16by Field Museum of Natural HistorySubjects: “...Museums--Illinois...”
Published 1938
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17by Field Museum of Natural HistorySubjects: “...Museums--Illinois...”
Published 1931
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18by Field Museum of Natural HistorySubjects: “...Museums--Illinois...”
Published 1946
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19by Rayhuff-Richter (Chicago, Ill.); Chicago (Ill.);Subjects: “...Illinois...”
Published
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Other/Unknown Material -
20by Field Museum of Natural HistorySubjects: “...Museums--Illinois...”
Published 1932
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