Helicosphaera sellii

(Bukry and Bramlette, 1969) Jafar and Martini, 1975 Feb 23, 2021

Set number: 1371

  • Helicosphaera sellii VR 07912 1
  • Helicosphaera sellii VR 07915 2
  • Helicosphaera sellii VR 07918 3
  • Helicosphaera sellii VR 07926 4
  • Helicosphaera sellii VR 07913 5
  • Helicosphaera sellii VR 07914 6
  • Helicosphaera sellii VR 07917 7
  • Helicosphaera sellii VR 07925 8
  • Helicosphaera sellii VR 07922 9
  • Helicosphaera sellii VR 07921 10
  • Helicosphaera sellii VR 07920 11
  • Helicosphaera sellii VR 07924 12
    10µm
Helicosphaera sellii, Early Pliocene, DSDP Leg 23, Site 225, Red Sea
Final Epithet
Helicosphaera sellii (Bukry and Bramlette, 1969) Jafar and Martini, 1975
Basionym

Helicopontosphaera sellii Bukry and Bramlette,1969

Description

Helicolith having a Type III (Helicosphaera carteri type) blanket, expanded flange termination and a central area with a moderate size central opening spanned by a conjunct traverse bar.

Remarks

Helicosphaera sellii differs from Helicosphaera carteri (Wallich, 1877) Kamptner (1954) and Helicosphaera bownii da Gama & Varol (2013) by having a larger central opening. It is further distinguished from Helicosphaera bownii by its younger stratigraphic occurrence.

References

Bukry, D. & Bramlette, M. N., (1969): Some new and stratigraphically useful calcareous nannofossils of the Cenozoic. - Tulane Studies in Geology. 7: 131-142.

da Gama, R. O. B. P. & Varol, O., (2013): New Late Oligocene to Miocene Species. - Journal of Nannoplankton Research. 33(1): 1-12.

Jafar, S. A. & Martini, E., (1975): On the validity of the calcareous nannoplankton genus Helicosphaera. - Senckenbergiana Lethaea. 56: 381-397.

Kamptner, E., (1954): Untersuchungen über den Feinbau der Coccolithen. Anzeiger. - Österreichische Akademie der Wissenschaften. Mathematische-Naturwissenschafliche Klasse. Wien. 87: 152-158.

Wallich, G. C., (1877): Observations on the coccosphere. - Annals and Magazine of Natural History. 19: 342-350.

Taxonomy
Helicosphaera
Biostratigraphy
  • Phanerozoic
    • Cenozoic
      • Quaternary
        • Pleistocene
          • Early Pleistocene
            • Calabrian
      • Neogene
        • Miocene
          • Late Miocene
            • Messinian
Stratigraphic Range
Messinian - Calabrian
Age (Ma)
5.60 - 1.26
Holotype
Helicosphaera cf carteri VR 03861

Helicopontosphaera sellii (Bukry & Bramlette, 1969) Jafar & Martini, 1965

Early Pliocene

Le Castella 81, Calabria, Italy