Retecapsa surirella

(Deflandre & Fert, 1954) Grün in Grün & Allemann, 1975 Feb 12, 2026

Set number: 3126

  • Heterorhabdus surirellus 10267 1
  • Heterorhabdus surirellus 10268 2
  • Heterorhabdus surirellus 10270 3
  • Retecapsa surirella 10273 4
  • Heterorhabdus surirellus 10266 5
  • Retecapsa surirella 10269 6
  • Heterorhabdus surirellus 10271 7
  • Retecapsa surirella 10274 8
  • Retecapsa surirella 10272 9
    10µm
Retecapsa surirella, Late Campanian, The specific location cannot be disclosed.

Set number: 3128

  • Heterorhabdus surirellus 3465 1
  • Heterorhabdus surirellus 3467 2
  • Heterorhabdus surirellus 3461 3
  • Heterorhabdus surirellus 3464 4
  • Heterorhabdus surirellus 3466 5
  • Heterorhabdus surirellus 3468 6
  • Heterorhabdus surirellus 3462 7
  • Heterorhabdus surirellus 3463 8
    10µm
Retecapsa surirella, Late Maastrichtian, The specific location cannot be disclosed.

Set number: 3127

  • Heterorhabdus surirellus 3348 1
  • Heterorhabdus surirellus 3347 2
  • Heterorhabdus surirellus 3345 3
  • Heterorhabdus surirellus 3346 4
    10µm
Retecapsa surirella, Late Maastrichtian, The specific location cannot be disclosed.

Set number: 3125

  • Heterorhabdus surirellus 3331 1
  • Heterorhabdus surirellus 3332 2
  • Heterorhabdus surirellus 3329 3
  • Heterorhabdus surirellus 3330 4
    10µm
Retecapsa surirella, Late Maastrichtian, The specific location cannot be disclosed.
Final Epithet
Retecapsa surirella (Deflandre & Fert, 1954) Grün in Grün & Allemann, 1975
Basionym

Discolithus surirella Deflandre & Fert, 1954

Synonyms

Cretarhabdus cantianus Black, 1973

Description

Species of Retecapsa are constructed of a cretarhabdid pelaga surrounding a large central area spanned by a distinct axial cross that supports a distal process. The inter-cross area is occupied by lateral bars that delimit pores arranged in a single complete concentric cycle. Each quadrant typically contains four pores formed by three lateral bars, a feature characteristic of Retecapsa surirella.

Optical Properties

Retecapsa surirella exhibits first-order, slightly greyish-white interference colours. In plan view under crossed polars, the pelaga shows inclined extinction and length-fast (–) elongation.

References

Black, M. 1973. British Lower Cretaceous Coccoliths. I-Gault Clay (Part 2). Palaeontographical Society Monograph 127: 49-112.

Deflandre, G. & Fert, C. 1954. Observations on current and fossil coccolithophorids in ordinary and electron microscopy. Annales de Paléontologie 40: 115-176.

Grün, W. & Allemann, F. 1975. The Lower Cretaceous of Caravaca (Spain): Berriasian Calcareous Nannoplankton of the Miravetes Section (Subbetic Zone, Prov. of Murcia). Eclogae Geologicae Helvetiae, 68: 147-211.

Taxonomy
Retecapsa
Biostratigraphy
  • Phanerozoic
    • Mesozoic
      • Cretaceous
        • Late Cretaceous
          • Senonian
            • Maastrichtian
              • Late Maastrichtian
        • Early Cretaceous
          • Neocomian
            • Berriasian
              • Early Berriasian
Stratigraphic Range
Early Berriasian - Late Maastrichtian
Age (Ma)
143.10? - 66.04?
Holotype
Retecapsa surirella 10269

Discolithus surirellus Deflandre & Fert, 1954

Senonian

Vanves, Seine, France.