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Mandibular Layering in Delphinapterus leucas and Age Determination

Nature volume 221, pages 956–958 (1969)Cite this article

Abstract

LAWS1 investigated mandibular periosteal layers as an aid to ageing the Sperm whale Physeter catodon. Continued studies of P. catodon indicate that mandibular layers and tooth layers occur in equal numbers2, and it has been postulated that two tooth layers are deposited annually3. Two tooth and one mandibular layer in Delphinus delphis are annual4.

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References

  1. Laws, R. M., Nature, 187, 338 (1960).

    Article  ADS  CAS  Google Scholar 

  2. Nishiwaki, M., Ohsumi, S., and Kasuya, T., Norsk Hvalfangst-tid, 12, 499 (1961).

    Google Scholar 

  3. Gambell, R., and Grzegorzewska, C., Norsk Hvalfangst-tid, 6, 117 (1967).

    Google Scholar 

  4. Kleinenberg, S. E., and Klevezal, G. A., Dokl. Akad. Nauk SSSR, 145, 460 (1962).

    Google Scholar 

  5. Sergeant, D. E., Norsk Hvalfangst-tid, 6, 273 (1959).

    Google Scholar 

  6. Khuzin, R., Nauchno-Tekh. Bull., PINRO, 1, 58 (1961).

    Google Scholar 

  7. Scheiman-Tagger, E., and Brodie, A. G., Anat. Rec., 150, 435 (1964).

    Article  CAS  Google Scholar 

  8. Brodie, P. F., thesis, McGill Univ. (1967).

  9. Scheffer, V. B., and Peterson, R. S., Growth, 31, 35 (1967).

    PubMed  CAS  Google Scholar 

  10. Simkiss, K., in Calcium in Reproductive Physiology (Chapman and Hall, 1967).

    Google Scholar 

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Authors and Affiliations

  1. Department of Biology, Dalhousie University, Halifax, Nova Scotia

    PAUL F. BRODIE

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  1. PAUL F. BRODIE
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BRODIE, P. Mandibular Layering in Delphinapterus leucas and Age Determination. Nature 221, 956–958 (1969). https://doi.org/10.1038/221956a0

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  • DOI: https://doi.org/10.1038/221956a0

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