Lapideacassis varius

(Crux, 1981) Varol, n. comb. Aug 03, 2020

Set number: 50

  • Lapideacassis sp 16705 1
  • Lapideacassis sp 16706 2
  • Lapideacassis sp 16703 3
  • Lapideacassis sp 16704 4
    10µm
Lapideacassis sp., Aptian, DSDP Leg 36, Site 327A, The Maurice Ewing Bank, Falkland Plateau
Final Epithet
Lapideacassis varius (Crux, 1981) Varol, n. comb.
Basionym

Pervilithus varius Crux, 1981

Synonyms

Eprolithus bettenstaedtii Mutterlose, 1992b

Remarks

Specimens observed at plan view cannot be assigned to any established species. Mapping different profiles of Lapideacassis species in mobile mount may prove useful.

Lapideacassis sp. Easily distinguished from Eprolithus and Radiolithus by having an axial C axis whereas later genera have a tangential C axis.

References

Crux, J. A., 1981. New calcareous nannofossil taxa from the Cretaceous of South East England. Neues Jahrbuch für Geologie und Paläontologie, Monatshefte 1981, 633-640.

Mutterlose, J., 1992b. Lower Cretaceous nannofossil biostratigraphy off northwestern Australia (Leg 123). Proceedings of the Ocean Drilling Program, Scientific Results 123, 343-368.

Taxonomy
Lapideacassis
Biostratigraphy
  • Phanerozoic
    • Cenozoic
      • Paleogene
        • Eocene
          • Late Eocene
            • Priabonian
    • Mesozoic
      • Cretaceous
        • Early Cretaceous
          • -
            • Aptian
Stratigraphic Range
Aptian - Priabonian
Age (Ma)
121.24? - 33.90?
Holotype
Lapideacassis sp 16706

Pervilithus varius Crux, 1981

Cenomanian

Southeast England