Cryptococcolithus mediaperforatus

(Varol, 1991) de Kaenel and Villa, 1996 Sep 16, 2020

Set number: 1622

  • Cryptococcolithus mediaperforatus VR 09680 1
  • Cryptococcolithus mediaperforatus VR 09683 2
  • Cryptococcolithus mediaperforatus VR 09679 3
  • Cryptococcolithus mediaperforatus VR 09690 4
  • Cryptococcolithus mediaperforatus VR 09681 5
  • Cryptococcolithus mediaperforatus VR 09678 6
  • Cryptococcolithus mediaperforatus VR 09682 7
  • Cryptococcolithus mediaperforatus VR 09691 8
  • Cryptococcolithus mediaperforatus VR 09688 9
  • Cryptococcolithus mediaperforatus VR 09687 10
  • Cryptococcolithus mediaperforatus VR 09684 11
  • Cryptococcolithus mediaperforatus VR 09692 12
  • Cryptococcolithus mediaperforatus VR 09689 13
  • Cryptococcolithus mediaperforatus VR 09686 14
  • Cryptococcolithus mediaperforatus VR 09685 15
    10µm
Cryptococcolithus mediaperforatus, Middle Miocene, Antakya, Hatay, Turkey

Set number: 1623

  • Cryptococcolithus mediaperforatus VR 09172 1
  • Cryptococcolithus mediaperforatus VR 09170 2
  • Cryptococcolithus mediaperforatus VR 09168 3
  • Cryptococcolithus mediaperforatus VR 09184 4
  • Cryptococcolithus mediaperforatus VR 09171 5
  • Cryptococcolithus mediaperforatus VR 09173 6
  • Cryptococcolithus mediaperforatus VR 09186 7
  • Cryptococcolithus mediaperforatus VR 09182 8
  • Cryptococcolithus mediaperforatus VR 09175 9
  • Cryptococcolithus mediaperforatus VR 09178 10
  • Cryptococcolithus mediaperforatus VR 09180 11
  • Cryptococcolithus mediaperforatus VR 09185 12
  • Cryptococcolithus mediaperforatus VR 09177 13
  • Cryptococcolithus mediaperforatus VR 09176 14
  • Cryptococcolithus mediaperforatus VR 09179 15
  • Cryptococcolithus mediaperforatus VR 09181 16
    10µm
Cryptococcolithus mediaperforatus, Early Pliocene, DSDP Leg 23, Site 225, Red Sea

Set number: 396

  • Cryptococcolithus mediaperforatus 379 1
  • Cryptococcolithus mediaperforatus 380 2
    10µm
Cryptococcolithus mediaperforatus, Middle Miocene, Malta

Set number: 397

  • Cryptococcolithus mediaperforatus 642 1
  • Cryptococcolithus mediaperforatus 641 2
    10µm
Cryptococcolithus mediaperforatus, Late Miocene, Gulf of Mexico

Set number: 398

  • Cryptococcolithus mediaperforatus 389 1
  • Cryptococcolithus mediaperforatus 390 2
    10µm
Cryptococcolithus mediaperforatus, Middle Miocene, Malta
Final Epithet
Cryptococcolithus mediaperforatus (Varol, 1991) de Kaenel and Villa, 1996
Basionym

Birkelundia mediaperforate Varol, 1991

Synonyms

Cryptococcolithus takayamae Gartner, 1992

Description

Elliptical placolith having non-birefringent single cycle proximal and distal shields. The central area is spanned by a non-birefringent porous mesh which is best seen in the Phase Contrast setting.

Remarks

Cryptococcolithus mediaperforatus differs from the elliptical species of Calcidiscus Kamptner (1950) by having a non-birefringent proximal shield [arguably faintly birefringent].

References

de Kaenel, E. & Villa, G., (1996): Oligocene-Miocene calcareous nannofossil biostratigraphy and paleoecology from the Iberian Abyssal Plain. - Proceedings of the Ocean Drilling Program, Scientific Results. 149: 79-145.

Gartner, S., (1992): Miocene nannofossil chronology in the North Atlantic, DSDP Site 608. - Marine Micropaleontology. 18: 307-331.

Kamptner, E., (1950): Über den submikroskopischen Aufbau der Coccolithen. - Anzeiger der Österreichische Akademie der Wissenschaften, Mathematische-Naturwissenschafliche Klasse, Wien. 87: 152-158.

Varol, O., (1991): New Cretaceous and Tertiary Calcareous Nannofossils. - Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen. 182: 211-237.

Taxonomy
Cryptococcolithus
Biostratigraphy
  • Phanerozoic
    • Cenozoic
      • Neogene
        • Miocene
          • Late Miocene
            • Messinian
          • Early Miocene
            • Burdigalian
Stratigraphic Range
Burdigalian - Messinian
Age (Ma)
16.10 - 5.39
Holotype
Cryptococcolithus mediaperforatus 642 Cryptococcolithus mediaperforatus 642

Birkelundia mediaperforate Varol, 1991

Middle Miocene

Malta