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Mathey, B.1
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10544249384
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Based on graphic correlation of the major lithological boundaries
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Based on graphic correlation of the major lithological boundaries.
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22
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10544227231
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personal communication
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Some of the echinoid species present in the Bay of Biscay Cretaceous sections are also known from the Tertiary (A. B. Smith, personal communication).
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Smith, A.B.1
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24
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10544227230
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note
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Forty-two diagnosable ammonite fossils are known from the interval (about 30 fossils per meter of section), compared with a recovery of 1.5 diagnosable ammonite fossils per meter over the preceding 200 m of section.
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32
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10544248920
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note
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The absence of ammonites in the marls of Member V is unlikely to be due to preservation failure, given that ammonites are found in the similar marls of Member III, which occurs lower in the section.
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33
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10544223170
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note
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2 of outcrop excavated within the pre-K-T gap (1.3 to 3.0 m below the K-T boundary). At these recovery rates, the probability that ammonites were as abundant in the excavated interval as they were above the preK-T gap is only 0.06; however, the probability that the ammonites were a third as abundant in the excavated interval as they were above the pre-K-T gap is 0.39.
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34
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10544253760
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note
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We thank A. Smith, M. Foote, D. Jablonski, D. Jacobs, B. Runnegar, and two anonymous reviewers for their comments. Supported by NSF grant EAR-9258045 to C.R.M. and by EAR-8904797 and EAR-8843926 to P.D.W.
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