Reproductive structures and taxonomic affinities of some nannofossils from the gunflint iron formation.

@article{Licari1968ReproductiveSA,
  title={Reproductive structures and taxonomic affinities of some nannofossils from the gunflint iron formation.},
  author={G R Licari and P E Cloud},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={1968},
  volume={59 4},
  pages={1053-60}
}