Set number: 951

  • Sphenolithus pseudostrigosus 2001 1
  • Sphenolithus pseudostrigosus 2002 2
  • Sphenolithus pseudostrigosus 2004 3
  • Sphenolithus pseudostrigosus 2003 4
    10µm
Sphenolithus strigosus, Middle Eocene, Offshore Cuba

Set number: 952

  • Sphenolithus pseudostrigosus 2010 1
  • Sphenolithus pseudostrigosus 2008 2
  • Sphenolithus pseudostrigosus 2005 3
  • Sphenolithus pseudostrigosus 2009 4
  • Sphenolithus pseudostrigosus 2007 5
  • Sphenolithus pseudostrigosus 2006 6
    10µm
Sphenolithus strigosus, Middle Eocene, Offshore Cuba
Final Epithet
Sphenolithus strigosus Bown & Dunkley Jones, 2006
Basionym

Sphenolithus strigosus Bown & Dunkley Jones, 2006

Remarks

The apical spine of Sphenolithus strigosus has an inclined extinction (extinction angle at 45°) whereas the apical spine of Sphenolithus runus has parallel extinction (extinction angle is 0°). The apical spines of Furcatolithus obtusus have oblique extinction (extinction angle is about 22°).

References

Bown, P. R., Dunkley Jones, T., 2006. New Paleogene calcareous nannofossil taxa from coastal Tanzania: Tanzania Drilling Project Sites 11 to 14. Journal of Nannoplankton Research 28(1), 17-34.