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22“...The Barremian Leptoceratoidinae, a subfamily of small-sized heteromorph ammonites, are revised...”
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23by Alsen, Peter“...ammonites, Lower Cretaceous, Valanginian, Wollaston Forland, East Greenland...”
Published 2002
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28by Kennedy, W.J., Crame, J.A., Bengtson, P., Thomson, M.R.A.“... located in the vicinity of Brandy Bay. A new suite of 10 ammonite taxa from the uppermost Whisky Bay...”
Published in Cretaceous Research (2007)
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29“... located in the vicinity of Brandy Bay. A new suite of 10 ammonite taxa from the uppermost Whisky Bay...”
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30by Callomon, John H., Alsen, Peter, Surlyk, Finn“...Thick successions of marine Middle Jurassic deposits rich in ammonites occur in the Jameson Land...”
Published in Geological Survey of Denmark and Greenland Bulletin (2015)
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31by Mönnig, Eckhard“... 75,000 to 100,000 years. The distribution of the ammonite genus Kepplerites in space and time has been...”
Published 2023
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32by Kennedy, W. James, Crame, J. Alistair, Bengtson, Peter, Thomson, Michael R.A.Get access
Published in Cretaceous Research (2007)
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33“...Abstract New discoveries have established the presence of nine ammonite zones in the Middle...”
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36“...Ammonite-bearing Jurassic and Cretaceous sedimentary successions are well developed...”
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38“... ( Hysteroceras varicosum zone) these ammonites migrated from Angola to Mexico and Trans-Pecos Texas via...”
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40by Imlay, Ralph Willard, 1908-; Jones, David L.; Geological Survey (U.S.)“.... and maps.; Includes bibliographical references. "Ammonites from the Buchia-bearing strata of northwestern...”
Published 1970
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