Pyrocyclus hermosus Roth & Hay in Hay et al., 1967
Hay, W. W., Mohler, H. P., Roth, P. H., Schmidt, R. R., Boudreaux, J. E., 1967. Calcareous nannoplankton zonation of the Cenozoic of the Gulf Coast and Caribbean-Antillean area, and transoceanic correlation. - Transactions of the Gulf-Coast Association of Geological Societies 17, 428-480.
Pyrocyclus hermosus
Roth & Hay in Hay et al., 1967
Oligocene
JOIDES, Hole 5, Blake Plateau, Atlantic Ocean