Helicosphaeroides seminulum

(Bramlette & Sullivan, 1961) Aubry, Liu, de Vargas, & Probert in Aubry & Bord, 2009 Sep 10, 2020

Set number: 1245

  • Helicosphaera seminulum VR 03072 1
  • Helicosphaera seminulum VR 03071 2
  • Helicosphaera seminulum VR 03075 3
  • Helicosphaera seminulum VR 03081 4
  • Helicosphaera seminulum VR 03073 5
  • Helicosphaera seminulum VR 03070 6
  • Helicosphaera seminulum VR 03074 7
  • Helicosphaera seminulum VR 03076 8
  • Helicosphaera seminulum VR 03079 9
  • Helicosphaera seminulum VR 03080 10
  • Helicosphaera seminulum VR 03078 11
  • Helicosphaera seminulum VR 03077 12
    10µm
Helicosphaeroides seminulum, Middle Eocene, DSDP Leg 39, Sites 356, Sào Paulo Plateau, South Atlantic Ocean

Set number: 1244

  • Helicosphaera seminulum VR 02718 1
  • Helicosphaera seminulum VR 02719 2
  • Helicosphaera seminulum VR 02722 3
  • Helicosphaera seminulum VR 02728 4
  • Helicosphaera seminulum VR 02717 5
  • Helicosphaera seminulum VR 02720 6
  • Helicosphaera seminulum VR 02721 7
  • Helicosphaera seminulum VR 02724 8
  • Helicosphaera seminulum VR 02727 9
  • Helicosphaera seminulum VR 02729 10
  • Helicosphaera seminulum VR 02726 11
  • Helicosphaera seminulum VR 02723 12
    10µm
Helicosphaeroides seminulum, Middle Eocene, DSDP Leg 39, Sites 356, Sào Paulo Plateau, South Atlantic Ocean

Set number: 320

  • Helicosphaera seminulum 1989 1
  • Helicosphaera seminulum 1990 2
    10µm
Helicosphaeroides seminulum, Middle Eocene, Arabian Peninsula
Final Epithet
Helicosphaeroides seminulum (Bramlette & Sullivan, 1961) Aubry, Liu, de Vargas, & Probert in Aubry & Bord, 2009
Basionym

Helicosphaera seminulum seminulum Bramlette & Sullivan, 1961

References

Bramlette, M. N., Sullivan, F. R., 1961, Coccolithophorids and related nannoplankton of the Early Tertiary in California. Micropaleontology 7(2), 129-188.

Aubry, M. -P., Bord, D., 2009. Reshuffling the cards in the photic zone at the Eocene/Oligocene boundary. In: Koeberl, C., Montanari, A. (eds), The Late Eocene Earth-Hothouse, Icehouse, and Impacts. Geological Society of America, Special Papers 452, 279-301.

Taxonomy
Helicosphaeroides
Biostratigraphy
  • Phanerozoic
    • Cenozoic
      • Paleogene
        • Eocene
          • Late Eocene
          • Middle Eocene
            • Bartonian
          • Early Eocene
            • Ypresian
Stratigraphic Range
Ypresian - Bartonian
Age (Ma)
52.20 - 40.60
Holotype
Helicosphaera seminulum 1989

Helicosphaera seminulum seminulum Bramlette & Sullivan, 1961

Early Eocene

Lodo section, northwestern Fresno County, central California, USA