Set number: 955

  • Sphenolithus perpendicularis 26047 1
  • Sphenolithus perpendicularis 26046 2
  • Sphenolithus perpendicularis 26050 3
  • Sphenolithus perpendicularis 26052 4
  • Sphenolithus perpendicularis 26048 5
  • Sphenolithus perpendicularis 26045 6
  • Sphenolithus perpendicularis 26049 7
  • Sphenolithus perpendicularis 26051 8
    10µm
Sphenolithus perpendicularis, Middle Eocene, IODP Leg 171, Site 1051A, Black Nose, Western North Atlantic

Set number: 954

  • Sphenolithus perpendicularis 25832 1
  • Sphenolithus perpendicularis 25831 2
  • Sphenolithus perpendicularis 25835 3
  • Sphenolithus perpendicularis 25837 4
  • Sphenolithus perpendicularis 25833 5
  • Sphenolithus perpendicularis 25830 6
  • Sphenolithus perpendicularis 25834 7
  • Sphenolithus perpendicularis 25838 8
    10µm
Sphenolithus perpendicularis, Middle Eocene, IODP Leg 171, Site 1051A, Black Nose, Western North Atlantic

Set number: 953

  • Sphenolithus perpendicularis 26060 1
  • Sphenolithus perpendicularis 26054 2
  • Sphenolithus perpendicularis 26058 3
  • Sphenolithus perpendicularis 26063 4
  • Sphenolithus perpendicularis 26059 5
  • Sphenolithus perpendicularis 26053 6
  • Sphenolithus perpendicularis 26057 7
  • Sphenolithus perpendicularis 26061 8
    10µm
Sphenolithus perpendicularis, Middle Eocene, IODP Leg 171, Site 1051A, Black Nose, Western North Atlantic
Final Epithet
Sphenolithus perpendicularis Shamrock, 2010
Basionym

Sphenolithus perpendicularis Shamrock, 2010

Variants

Sphenolithus kempii Bown & Dunkley Jones, 2012

Remarks

This species is possibly a preservational morphotype of Sphenolithus stellatus Gartner, 1967a.

References

Bown, P. R., Dunkley Jones, T., 2012. Calcareous nannofossils from the Paleogene equatorial Pacific (IODP Expedition 320 Sites U1331-1334). Journal of Nannoplankton Research 32(2), 3-51.

Gartner, S., 1967a. Calcareous nannofossils from Neogene of Trinidad, Jamaica, and Gulf of Mexico. University of Kansas Paleontological Contributions, Papers 29, 1-7.

Shamrock, J. L., 2010. A new calcareous nannofossil species of the genus Sphenolithus from the Middle Eocene (Lutetian) and its biostratigraphic significance. Journal of Nannoplankton Research 31(1), 5-10.