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21by Repenning, Charles Albert, 1922-Subjects: “...Paleontology Pliocene. http://id.loc.gov/authorities/subjects/sh85097142...”
Published 1987
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22by Tappan, Helen Niña, 1917-2004Subjects: “...Paleontology Triassic. http://id.loc.gov/authorities/subjects/sh85097149...”
Published 1962
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23by Gordon, Mackenzie, 1913-Subjects: “...Paleontology Mississippian. http://id.loc.gov/authorities/subjects/sh85097133...”
Published 1957
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24by MacNeil, F. Stearns (Francis Stearns), 1909-Subjects: “...Paleontology Cenozoic. http://id.loc.gov/authorities/subjects/sh85097126...”
Published 1957
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25by Mamet, Bernard L.Subjects: “...Paleontology Devonian. http://id.loc.gov/authorities/subjects/sh85097128...”
Published 1982
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26by Imlay, Ralph W. (Ralph Willard), 1908-1989Subjects: “...Paleontology Jurassic. http://id.loc.gov/authorities/subjects/sh85097130...”
Published 1953
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27by Armstrong, Augustus K.Subjects: “...Paleontology Mississippian. http://id.loc.gov/authorities/subjects/sh85097133...”
Published 1970
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28Published 1979Subjects: “...Paleontology Alaska North Slope....”
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29by Imlay, Ralph W. (Ralph Willard), 1908-1989Subjects: “...Paleontology Jurassic. http://id.loc.gov/authorities/subjects/sh85097130...”
Published 1980
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30by Imlay, Ralph W. (Ralph Willard), 1908-1989Subjects: “...Paleontology Jurassic. http://id.loc.gov/authorities/subjects/sh85097130...”
Published 1976
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31by Imlay, Ralph W. (Ralph Willard), 1908-1989Subjects: “...Paleontology Jurassic. http://id.loc.gov/authorities/subjects/sh85097130...”
Published 1984
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32Subjects: “...Paleontology Jurassic. http://id.loc.gov/authorities/subjects/sh85097130...”
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33by Imlay, Ralph W. (Ralph Willard), 1908-1989Subjects: “...Paleontology Jurassic. http://id.loc.gov/authorities/subjects/sh85097130...”
Published 1981
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34by Imlay, Ralph W. (Ralph Willard), 1908-1989Subjects: “...Paleontology Jurassic. http://id.loc.gov/authorities/subjects/sh85097130...”
Published 1982
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35Subjects: “...Paleontology Silurian. http://id.loc.gov/authorities/subjects/sh85097147...”
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36by Tappan, Helen Niña, 1917-2004Subjects: “...Paleontology Triassic. http://id.loc.gov/authorities/subjects/sh85097149...”
Published 1951
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37by Tappan, Helen Niña, 1917-2004Subjects: “...Paleontology Triassic. http://id.loc.gov/authorities/subjects/sh85097149...”
Published 1951
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38Published 1975Subjects: “...Paleontology Paleozoic. http://id.loc.gov/authorities/subjects/sh85097138...”
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39by Imlay, Ralph W. (Ralph Willard), 1908-1989Subjects: “...Paleontology Jurassic. http://id.loc.gov/authorities/subjects/sh85097130...”
Published 1953
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40Subjects: “...Paleontology Oligocene. http://id.loc.gov/authorities/subjects/sh85097135...”
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