Cruciplacolithus mutatus

Perch-Nielsen, 1971 Aug 20, 2021

Set number: 410

  • Cruciplacolithus staurion 25884 1
  • Cruciplacolithus staurion 25883 2
  • Cruciplacolithus staurion 25882 3
  • Cruciplacolithus staurion 25881 4
  • Cruciplacolithus staurion 25886 5
  • Cruciplacolithus staurion 25885 6
  • Cruciplacolithus staurion 25888 7
  • Cruciplacolithus staurion 25887 8
    10µm
Cruciplacolithus mutatus, Middle Eocene, IODP Leg 171, Site 1051A, Black Nose, Western North Atlantic
Final Epithet
Cruciplacolithus mutatus Perch-Nielsen, 1971
Basionym

Cruciplacolithus mutatus Perch-Nielsen, 1971

Synonyms

Coccolithus mutatus (Perch-Nielsen, 1971) Bown, 2005

Pletolithus mutatus (Perch-Nielsen, 1971) Cappelli et al. 2020

Description

Very large (>12.0µm) species of Cruciplacolithus have a relatively wide central area with a delicate axial crossbar.

References

Bown, P. R., (2005): Palaeogene calcareous nannofossils from the Kilwa and Lindi areas of coastal Tanzania (Tanzania Drilling Project 2003-4). - Journal of Nannoplankton Research. 27(1): 21-95.

Cappelli, C., Bown, P. R., Riu, M. D. & Agnini, C., (2020): Middle Eocene large coccolithaceans: Biostratigraphic implications and paleoclimatic clues. - Marine Micropaleontology. 154: 1-17.

Perch-Nielsen, K., (1971): Elektronenmikroskopische untersuchungen an Coccolithen und verwandten Formen aus dem Eozan von Danemark. - Biologiske Skrifter, Kongelige Danske Videnskabernes Selskab. 18(3): 1-76.

Taxonomy
Cruciplacolithus
Biostratigraphy
  • Phanerozoic
    • Cenozoic
      • Paleogene
        • Eocene
          • Middle Eocene
            • Bartonian
          • Early Eocene
            • Ypresian
Stratigraphic Range
Ypresian - Bartonian
Age (Ma)
48.80 - 46.07
Holotype
Cruciplacolithus mutatus 25882

Cruciplacolithus mutatus Perch-Nielsen, 1971

Early Eocene

Rojle, Denmark