Nannoconaceae

Type Genus

Nannoconus Kamptner, 1931

Remarks

Kryptococcoliths exhibit conical, spherical, or cylindrical morphologies and consist of spirally arranged segments encircling an axial cavity or canal. From a plan view, they exhibit length-slow (+) elongation.

Coccospheres of Nannoconus troelsenii was published by Albian Alves et al. (2017), and the coccopsphere of Nannoconus sp. is presented on the cover page of this site.

References

Alves, C. F., Lima, F. H., de O. & Shimabukoro, S. 2017. New Aptian calcareous nannofossil species from Brazil. Journal of Nannoplankton Research. 37(1): 15-24.

Deflandre, G. 1959. Sur les nannofossiles calcaires et leur systématique. Revue de Micropaléontologie 2: 127-152.

Kamptner, E. 1931. Nannoconus steinmanni novo gen., novo spec., ein merkwurdiges gesteinbildendes Mikrofossil aus dem jungeren Mesozoikum der Alpen. Paläontologische Zeitschrift. 13: 288-298.