Watznaueria fossacincta

(Black, 1971a) Bown in Bown & Cooper, 1989 Jun 01, 2025

Set number: 1766

  • Watznaueria fossacincta VR 20295 1
  • Watznaueria fossacincta VR 20292 2
  • Watznaueria fossacincta VR 20299 3
  • Watznaueria fossacincta VR 20300 4
  • Watznaueria fossacincta VR 20297 5
  • Watznaueria fossacincta VR 20293 6
  • Watznaueria fossacincta VR 20298 7
  • Watznaueria barnesiae VR 20301 8
  • Watznaueria fossacincta VR 20284 9
  • Watznaueria fossacincta VR 20282 10
  • Watznaueria fossacincta VR 20283 11
  • Watznaueria fossacincta VR 20286 12
  • Watznaueria fossacincta VR 20289 13
  • Watznaueria fossacincta VR 20290 14
  • Watznaueria fossacincta VR 20288 15
    10µm
Quebrada La Cristalina, Colombia

Set number: 1769

  • Watznaueria fossacincta VR 20829 1
  • Watznaueria fossacincta VR 20833 2
  • Watznaueria fossacincta VR 20838 3
  • Watznaueria fossacincta VR 20841 4
  • Watznaueria fossacincta VR 20827 5
  • Watznaueria fossacincta VR 20831 6
  • Watznaueria fossacincta VR 20837 7
  • Watznaueria fossacincta VR 20842 8
  • Watznaueria fossacincta VR 20824 9
  • Watznaueria fossacincta VR 20823 10
  • Watznaueria fossacincta VR 20822 11
  • Watznaueria fossacincta VR 20821 12
    10µm
Quebrada La Cristalina, Colombia

Set number: 1768

  • Watznaueria fossacincta VR 20464 1
  • Watznaueria fossacincta VR 20463 2
  • Watznaueria fossacincta VR 20467 3
  • Watznaueria fossacincta VR 20468 4
  • Watznaueria fossacincta VR 20465 5
  • Watznaueria fossacincta VR 20462 6
  • Watznaueria fossacincta VR 20466 7
  • Watznaueria fossacincta VR 20469 8
  • Watznaueria fossacincta VR 20475 9
  • Watznaueria fossacincta VR 20476 10
  • Watznaueria fossacincta VR 20477 11
  • Watznaueria fossacincta VR 20478 12
  • Watznaueria fossacincta VR 20473 13
  • Watznaueria fossacincta VR 20472 14
  • Watznaueria fossacincta VR 20471 15
  • Watznaueria fossacincta VR 20470 16
    10µm
Quebrada La Cristalina, Colombia

Set number: 1767

  • Watznaueria fossacincta VR 20453 1
  • Watznaueria fossacincta VR 20456 2
  • Watznaueria fossacincta VR 20459 3
  • Watznaueria fossacincta VR 20460 4
  • Watznaueria fossacincta VR 20454 5
  • Watznaueria fossacincta VR 20455 6
  • Watznaueria fossacincta VR 20458 7
  • Watznaueria fossacincta VR 20461 8
  • Watznaueria fossacincta VR 20444 9
  • Watznaueria fossacincta VR 20443 10
  • Watznaueria fossacincta VR 20445 11
  • Watznaueria fossacincta VR 20446 12
  • Watznaueria fossacincta VR 20451 13
  • Watznaueria fossacincta VR 20450 14
  • Watznaueria fossacincta VR 20449 15
  • Watznaueria fossacincta VR 20447 16
    10µm
Quebrada La Cristalina, Colombia

Set number: 1765

  • Watznaueria fossacincta VR 15819 1
  • Watznaueria fossacincta VR 15812 2
  • Watznaueria fossacincta VR 15820 3
  • Watznaueria fossacincta VR 15823 4
  • Watznaueria fossacincta VR 15818 5
  • Watznaueria fossacincta VR 15815 6
  • Watznaueria fossacincta VR 15821 7
  • Watznaueria fossacincta VR 15824 8
  • Watznaueria fossacincta VR 15829 9
  • Watznaueria fossacincta VR 15830 10
  • Watznaueria fossacincta VR 15831 11
  • Watznaueria fossacincta VR 15832 12
  • Watznaueria fossacincta VR 15828 13
  • Watznaueria fossacincta VR 15827 14
  • Watznaueria fossacincta VR 15826 15
  • Watznaueria fossacincta VR 15825 16
    10µm
Ocal Creek, Colombia
Final Epithet
Watznaueria fossacincta (Black, 1971a) Bown in Bown & Cooper, 1989
Basionym

Ellipsagelosphaera fossacincta Black, 1971a

Remarks

The elliptical species of Watznaueria with an open central area without any structure is assigned to Watznaueria fossacincta. The extinction angle measured on the distal side is about 67° on the distal shield, but it can not be measured in the tube cycle due to the oblique orientation of the tube cycle segments. The apparent angle between extinction on the tube cycle is 62°, corresponding to an obliquity angle of 28°.

References

Black, M. 1971a. Coccoliths of the Speeton Clay and Sutterby Marl. Proceedings of the Yorkshire Geological Society 38: 381-424.

Bown, P. R. & Cooper, M. K. E. 1989b: New calcareous nannofossils from the Jurassic. Journal of Micropalaeontology 8: 91-96.

Taxonomy
Watznaueria
Biostratigraphy
  • Phanerozoic
    • Mesozoic
      • Cretaceous
        • Late Cretaceous
          • -
            • Maastrichtian
              • Late Maastrichtian
      • Jurassic
        • Middle Jurassic
          • -
            • Aalenian
Stratigraphic Range
Aalenian - Maastrichtian
Age (Ma)
174.70? - 66.04?
Holotype
Watznaueria fossacincta VR 20292

Ellipsagelosphaera fossacincta Black, 1971a

Hauterivian

Speeton Clay at Speeton, England