Rucinolithus irregularis Thierstein, in Roth & Thierstein, 1972
Covington, J. M. & Wise, S. W. 1987. Calcareous nannofossil biostratigraphy of a Lower Cretaceous deep-sea fan complex: Deep Sea Drilling Project Leg 93 Site 603, lower continental rise off Cape Hatteras. Initial Reports of the Deep Sea Drilling Project. 93: 617-660.
Roth, P. H. & Thierstein, H. R. 1972. Calcareous nannoplankton: Leg 14 of the Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project. 12: 546-559.
Rucinolithus irregularis
Thierstein in Roth & Thierstein, 1972
Aptian - Albian
DSDP Leg 14, Site 137, Cape Verde Basin, North Atlantic Ocean