Transversopontis rimosus

(Bramlette & Sullivan, 1961) Varol, in prep. Jun 13, 2025
P rimosa

Final Epithet
Transversopontis rimosus (Bramlette & Sullivan, 1961) Varol, in prep.
Basionym

Discolithus rimosus Bramlette & Sullivan, 1961

Remarks

Pontosphaera rimosa consists of a wall and a proximal plate, with a thin distal cover pierced by a single large pore. The species exhibits dextrally inclined extinction lines, with a typical extinction angle of approximately 65°

References

Roth, P. H. & Thierstein, H. R. 1972. Calcareous nannoplankton: Leg 14 of the Deep Sea Drilling Project. Initial Reports of the Deep Sea Drilling Project. 12: 546-559.

Bramlette, M. N. & Sullivan, F. R. 1961, Coccolithophorids and related nannoplankton of the Early Tertiary in California. Micropaleontology 7(2): 129-188.

Taxonomy
Transversopontis
Biostratigraphy
  • Phanerozoic
    • Cenozoic
      • Paleogene
        • Eocene
          • Middle Eocene
            • Lutetian
        • Paleocene
          • Late Paleocene
            • Thanetian
Stratigraphic Range
Thanetian - Lutetian
Zone(s)
NP8 - NP15
Age (Ma)
59.24? - 41.03?
Holotype
Transversopontis rimosus 20127

Discolithus rimosus Bramlette & Sullivan, 1961

Late Paleocene

Lodo section, northwestern Fresno County, central California, USA