Cruciplacolithus primus

Perch-Nielsen, 1977a Jan 24, 2022

Set number: 1353

  • Cruciplacolithus intermedius VR 01355 1
  • Cruciplacolithus intermedius VR 01351 2
  • Cruciplacolithus intermedius VR 01372 3
  • Cruciplacolithus intermedius VR 01359 4
  • Cruciplacolithus intermedius VR 01356 5
  • Cruciplacolithus intermedius VR 01361 6
  • Cruciplacolithus intermedius VR 01371 7
  • Cruciplacolithus intermedius VR 01357 8
  • Cruciplacolithus intermedius VR 01344 9
  • Cruciplacolithus intermedius VR 01349 10
  • Cruciplacolithus intermedius VR 01345 11
  • Cruciplacolithus intermedius VR 01367 12
  • Cruciplacolithus intermedius VR 01343 13
  • Cruciplacolithus intermedius VR 01342 14
  • Cruciplacolithus intermedius VR 01346 15
  • Cruciplacolithus intermedius VR 01363 16
    10µm
Cruciplacolithus primus, Early Paleocene, Moscow Landing, bank of the Tombigbee River, Alabama, USA

Set number: 1338

  • Cruciplacolithus primus large VR 02057 1
  • Cruciplacolithus primus large VR 02054 2
  • Cruciplacolithus primus large VR 02059 3
  • Cruciplacolithus primus large VR 02060 4
  • Cruciplacolithus primus large VR 02056 5
  • Cruciplacolithus primus large VR 02055 6
  • Cruciplacolithus primus large VR 02058 7
  • Cruciplacolithus primus large VR 02065 8
  • Cruciplacolithus primus large VR 02062 9
  • Cruciplacolithus primus large VR 02061 10
  • Cruciplacolithus primus large VR 02063 11
  • Cruciplacolithus primus large VR 02064 12
    10µm
Cruciplacolithus primus, Early Paleocene, Moscow Landing, bank of the Tombigbee River, Alabama, USA
Final Epithet
Cruciplacolithus primus Perch-Nielsen, 1977a
Basionym

Cruciplacolithus primus Perch-Nielsen, 1977a

Dimensions Of Holotype

The calculated size of the holotype is 5.5µm.

Description

Medium size (5.0-8.0µm) Cruciplacolithus with a narrow tube cycle and a central area with axial cross-bars

References

Perch-Nielsen, K.,1977a. Albian to Pleistocene calcareous nannofossils from the Western South Atlantic, DSDP Leg 39. Initial Reports of the Deep Sea Drilling Project. 39, 699-823.

Taxonomy
Cruciplacolithus
Biostratigraphy
  • Phanerozoic
    • Cenozoic
      • Paleogene
        • Paleocene
          • Late Paleocene
            • Thanetian
          • Early Paleocene
            • Danian
Stratigraphic Range
Danian - Thanetian
Age (Ma)
65.72 - 56.00?
Holotype
Cruciplacolithus primus large VR 02059

Cruciplacolithus primus Perch-Nielsen, 1977a

Early Paleocene

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