Cretarhabdus limbicrassus

(Reinhardt, 1964) Varol, n. comb. Feb 04, 2026
C limbicrassus Black SEM a

SEM photo of Cretarhabdus limbicrassus from Black, 1972a (Pl. 16, Fig. 5)

Set number: 3024

  • Cretarhabdus limbicrassa 10342 1
  • Cretarhabdus limbicrassa 10344 2
  • Cretarhabdus limbicrassa 10346 3
  • Cretarhabdus limbicrassa 10352 4
  • Cretarhabdus limbicrassa 10343 5
  • Cretarhabdus limbicrassa 10345 6
  • Cretarhabdus limbicrassa 10347 7
  • Cretarhabdus limbicrassa 10350 8
  • Cretarhabdus limbicrassa 10356 9
  • Cretarhabdus limbicrassa 10348 10
  • Cretarhabdus limbicrassa 10355 11
  • Cretarhabdus limbicrassa 10351 12
  • Cretarhabdus limbicrassa 10349 13
  • Cretarhabdus limbicrassa 10354 14
  • Cretarhabdus limbicrassa 10353 15
    10µm
Cretarhabdus limbicrassus, Late Campanian, The specific location cannot be disclosed.
Final Epithet
Cretarhabdus limbicrassus (Reinhardt, 1964) Varol, n. comb.
Basionym

Stradneria limbicrassa Reinhardt, 1964

Variants

Cretarhabdella spectabilis Black, 1971a

Cretarhabdella lateralis Black, 1972a

Cretarhabdus multiforus Black, 1972a

Cretarhabdus biseriatus Forchheimer, 1972

Cretarhabdus cantianus Black 1973

Optical Properties

The entire species exhibits first-order, slightly greyish-white interference colours. The pelaga of Cretarhabdus limbicrassus shows a weak inclined extinction and length-fast (-) elongation in their natural settling position, in plan view under crossed polars.

Remarks

Species of Cretarhabdus are constructed of cretarhabdid pelaga surrounding a large central area spanned by an axial cross that supports a distal process. The inter-cross area is occupied by lateral bars that delimit pores arranged in two or more complete concentric cycles. The number of pores in the outer cycle is typically 20 or more, a characteristic feature of Cretarhabdus limbicrassus.

References

Black, M. 1971a. Coccoliths of the Speeton Clay and Sutterby Marl. Proceedings of the Yorkshire Geological Society 38: 381-424.

Black, M. 1972a. British Lower Cretaceous Coccoliths. I-Gault Clay (Part 1). Palaeontographical Society Monograph. 126: 1-48.

Forchheimer, S. 1972. Scanning electron microscope studies of Cretaceous coccoliths from the Köpingsberg Borehole No. 1, SE Sweden. Sveriges Geologiska Undersökning, Series C. #668, 65: 1-141.

Reinhardt, P. 1964. Einige Kalkflagellaten-Gattungen (Coccolithophoriden, Coccolithineen) aus dem Mesozoikum Deutschlands. - Monatsberichteder Deutschen Akademieder Wissenschaftenzu Berlin. 6: 749-759.

Taxonomy
Cretarhabdus
Biostratigraphy
  • Phanerozoic
    • Mesozoic
      • Cretaceous
        • Late Cretaceous
          • Senonian
            • Maastrichtian
              • Late Maastrichtian
        • Early Cretaceous
          • Neocomian
            • Hauterivian
              • Early Hauterivian
Stratigraphic Range
Early Hauterivian - Late Maastrichtian
Age (Ma)
132.60? - 66.04?
Holotype
Cretarhabdus limbicrassa 10342 Cretarhabdus limbicrassa 10342

Stradneria limbicrassa Reinhardt, 1964

Maastrichtian

Rugen, Germany