Scampanella asymmetrica

Perch-Nielsen in Perch-Nielsen & Franz, 1977 Aug 03, 2020

Set number: 1633

  • Scampanella asymmetrica 9339 1
  • Scampanella asymmetrica 9342 2
  • Scampanella asymmetrica 9343 3
  • Scampanella asymmetrica 9346 4
  • Scampanella asymmetrica 9340 5
  • Scampanella asymmetrica 9341 6
  • Scampanella asymmetrica 9344 7
  • Scampanella asymmetrica 9345 8
    10µm
Scampanella asymmetrica, Late Albian, Folkestone, England
Final Epithet
Scampanella asymmetrica Perch-Nielsen in Perch-Nielsen & Franz, 1977
Basionym

Scampanella asymmetrica Perch-Nielsen in Perch-Nielsen & Franz, 1977

Remarks

Asymmetrical species of Scampanella having a ratio of the height to the width [without spines and collar] is greater than 2.0 whiles the ratio of distal tier to the cone is about 2.0-2.5. The distal tier to cone ratio of the above-illustrated specimen is not compatible with the dimensions of the holotype. The ratio of the distal tier to the cone is about 1.0 in our specimen.

Scampanella asymmetrica is easily distinguished from other members of Scampanella by being asymmetrical.

Occurrence
Worldwide
References

Perch-Nielsen, K., Franz, H. E., 1977. Lapideacassis and Scampanella, calcareous nannofossils from the Paleocene at sites 354 and 356, DSDP Leg 39, Southern Atlantic. Initial Reports of the Deep Sea Drilling Project 39, 849-862.

Taxonomy
Scampanella
Biostratigraphy
  • Phanerozoic
    • Cenozoic
      • Paleogene
        • Paleocene
          • Early Paleocene
            • Danian
              • Danian
    • Mesozoic
      • Cretaceous
        • Early Cretaceous
          • -
            • Albian
              • Late Albian
Stratigraphic Range
Late Albian - Danian
Age (Ma)
107.59? - 61.66?
Holotype
Scampanella asymmetrica 9344

Scampanella asymmetrica Perch-Nielsen, in Perch-Nielsen & Franz, 1977

Early Paleocene

DSDP Leg 39, Sites 356, Sào Paulo Plateau, South Atlantic Ocean