Radiometric determination of the growth rate of Nautilus in nature

@article{Cochran1984RadiometricDO,
  title={Radiometric determination of the growth rate of Nautilus in nature},
  author={Jeffery K. Cochran and Neil. H. Landman},
  journal={Nature},
  year={1984},
  volume={308},
  pages={725-727}
}
Nautilus is the sole surviving genus of externally shelled cephalopods and therefore, determination of its rate of growth is important for understanding the life histories of a host of related fossil forms. Direct observations of its growth rate are difficult, however, so we have used here naturally occurring radionuclides. We used the 210Po/210Pb activity ratio as a chronometer to estimate the growth rates of seven specimens of Nautilus belauensis Saunders. In three immature animals the age of… CONTINUE READING