Chiastozygus spissus

Bergen in Bralower & Bergen, 1998 Jan 26, 2026

Set number: 2923

  • Chiastozygus spissus 11294 1
  • Chiastozygus spissus 11296 2
  • Chiastozygus spissus 11298 3
  • Chiastozygus spissus 11301 4
  • Chiastozygus spissus 11295 5
  • Chiastozygus spissus 11297 6
  • Chiastozygus spissus 11300 7
  • Chiastozygus spissus 11299 8
    10µm
Chiastozygus spissus, Late Cenomanian, Vergons, SE France

Set number: 2922

  • Chiastozygus spissus 8040 1
  • Chiastozygus spissus 8038 2
  • Chiastozygus spissus 8043 3
  • Chiastozygus spissus 8041 4
  • Chiastozygus spissus 8039 5
  • Chiastozygus spissus 8042 6
    10µm
Chiastozygus spissus, Early Cenomanian, Vergons, SE France

Set number: 2921

  • Chiastozygus spissus 7882 1
  • Chiastozygus spissus 7885 2
  • Chiastozygus spissus 7886 3
  • Chiastozygus spissus 7883 4
  • Chiastozygus spissus 7884 5
  • Chiastozygus spissus 7887 6
    10µm
Chiastozygus spissus, Early Cenomanian, Vergons, SE France
Final Epithet
Chiastozygus spissus Bergen in Bralower & Bergen, 1998
Basionym

Chiastozygus spissus Bergen in Bralower & Bergen, 1998

References

Bralower, T. J. & Bergen, J. A. 1998. Cenomanian–Santonian calcareous nannofossil biostratigraphy of a transect of cores drilled across the Western Interior Seaway. In: Dean, W. E. & Arthur, M. A. (Eds.) Stratigraphy and paleoenvironments of the Cretaceous Western Interior Seaway. SEPM Concepts in Sedimentology and Paleontology. 59–77.

Taxonomy
Chiastozygus
Biostratigraphy
  • Phanerozoic
    • Mesozoic
      • Cretaceous
        • Late Cretaceous
          • Middle Cretaceous
            • Turonian
              • Late Turonian
        • Early Cretaceous
          • Middle Cretaceous
            • Albian
              • Late Albian
Stratigraphic Range
Late Albian - Late Turonian
Age (Ma)
107.59? - 89.39?
Holotype
Chiastozygus spissus 8038

Chiastozygus spissus Bergen in Bralower & Bergen, 1998,

Late Albian

Blieux, SE France