Set number: 186

  • Arkhangelskiella inclinata 12320 1
  • Arkhangelskiella inclinata 12322 2
  • Arkhangelskiella inclinata 12324 3
  • Arkhangelskiella inclinata 12327 4
  • Arkhangelskiella inclinata 12321 5
  • Arkhangelskiella inclinata 12323 6
  • Arkhangelskiella inclinata 12325 7
  • Arkhangelskiella inclinata 12326 8
    10µm
Arkhangelskiella inclinata, Late Maastrichtian, Unknown

large specimen with a narrow pelaga

Set number: 185

  • Arkhangelskiella inclinata 12344 1
  • Arkhangelskiella inclinata 12346 2
  • Arkhangelskiella inclinata 12348 3
  • Arkhangelskiella inclinata 12352 4
  • Arkhangelskiella inclinata 12345 5
  • Arkhangelskiella inclinata 12347 6
  • Arkhangelskiella inclinata 12349 7
  • Arkhangelskiella inclinata 12351 8
    10µm
Arkhangelskiella inclinata, Late Maastrichtian, Unknown

large specimen with a narrow pelaga

Set number: 187

  • Arkhangelskiella inclinata 4587 1
  • Arkhangelskiella inclinata 4584 2
  • Arkhangelskiella inclinata 4588 3
  • Arkhangelskiella inclinata 4586 4
  • Arkhangelskiella inclinata 4585 5
  • Arkhangelskiella inclinata 4589 6
    10µm
Arkhangelskiella inclinata, Middle Campanian, Arabian Peninsula

large specimen with a narrow pelaga

Set number: 188

  • Arkhangelskiella inclinata L M 3025 1
  • Arkhangelskiella inclinata L M 3027 2
  • Arkhangelskiella inclinata L M 3028 3
  • Arkhangelskiella inclinata L M 3026 4
    10µm
Arkhangelskiella inclinata, Late Maastrichtian, Unknown

very large specimen with a medium-wide pelaga

Set number: 189

  • Arkhangelskiella inclinata 3323 1
  • Arkhangelskiella inclinata 3324 2
  • Arkhangelskiella inclinata 3320 3
  • Arkhangelskiella inclinata 3322 4
    10µm
Arkhangelskiella inclinata, Late Maastrichtian, Unkown

large specimen with a narrow pelaga

Final Epithet
Arkhangelskiella inclinata Reinhardt, 1965
Basionym

Arkhangelskiella inclinata Reinhardt, 1965 [Holotype Length: 10.0µm; width of pelaga: <1.5µm]

Synonyms

Arkhangelskiella imperfossa Hoffmann, 1970 [Holotype Length: 11.0µm; width of pelaga: 1.5-2.0µm]

Arkhangelskiella cymbiformis Vekshina (1959) var. N Varol,1989 [Length: 8.0m; width of pelaga: <1.5µm] = Arkhangelskiella confusa Burnett, 1997

Variants

Discolithus octocentralis Stover, 1966 [Holotype Length: 11.0µm; width of pelaga: <1.5µm]

Arkhangelskiella cymbiformis Vekshina (1959) var. W, Varol, 1989 [Length: 10.0m; width of pelaga: >2.0µm] = Arkhangelskiella maastrichtiana Burnett, 1997

Remarks

Species of Arkhangelskiella having a central area without any perforation. The variant of this species based on overall size and the width of the pelaga may prove to be useful for local correlations (Varol, 1989). The holotype is 10.0µm with a narrow pelaga.

References

Hoffmann, N., (1970): Taxonomische Untersuchungen an Coccolithen aus der Kreide Norddeutchlands anhand elektronenmikroskopischer Aufnamen. - Hercynia, 7(1-3): 163-198.

Reinhardt, P., (1965): Neue Familien für fossile Kalkflagellaten (Coccolithophoriden, Coccolithineen). - Monatsberichte der Deutschen Akademie der Wissenschaften zu Berlin. 7: 30-40.

Shumenko, S.I., (1969): Electron microscopy of Late Cretaceous coccoliths of the Russian Platform. - Paleontological Journal, 3(2): 3-14.

Stover, L.E., (1966): Cretaceous coccoliths and associated nannofossils from France and the Netherlands. - Micropaleontology, 12: 133-167.

Vekshina, V.N., (1959): Coccolithophoridae of the Maastrichtian deposits of the West Siberian lowlands. - Siberian Science Research Institute of Geology Geophysics Mineralogy and Raw Materials, 2: 56-81.

Varol, O., (1989): Quantitative analysis of the Arkhangelskiella cymbiformis group and its biostratigraphical usefulness in the North Sea area. - Journal of Micropalaeontology, 8: 131-134.

Vekshina, V.N., (1959): Coccolithophoridae of the Maastrichtian deposits of the West Siberian lowlands. - Siberian Science Research Institute of Geology Geophysics Mineralogy and Raw Materials, 2: 56-81.