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