American species of Operculina and Heterostegina and their faunal relations; A new species of Orthophragmina from Louisiana

@inproceedings{Cushman2011AmericanSO,
  title={American species of Operculina and Heterostegina and their faunal relations; A new species of Orthophragmina from Louisiana},
  author={Joseph Augustine Cushman},
  year={2011}
}
  • Joseph Augustine Cushman
  • Published 2011
  • Biology
  • Almost nothing is known of the American fossil species of Operculina and Heterostegina. In the Ocala limestone, next to the larger Orthophragmina and Lepidocyclina, these genera are the most conspicuous members of the foraminiferal fauna. That there are several species, well marked in .their characteristics, and that they have definite stratigraphic positions seems very clear from a study of the material. Most of the localities at which the material here described was obtained are in the Ocala… CONTINUE READING