Coccolithophorids Name: Coccolithophorids   

Showcase: Microfossil showcase  

Size: < 0.01 mm  

Coccolithophores are unicellular planctonic protists with photosynthetic pigments. Tiny calcareous scales called coccoliths ( (0.003-0.015 across) form around these cells a protective armour which falls apart when the organism dies. The Cretaceous and Tertiary "chalks" are formed of almost 100% coccoliths.
Coccoliths are known from late Triassic times through to Recent times.
The model shows Umbilicosphaera sibogae sp. Size: < 0.01 mm. Geological range: Miocene (Tertiary) to recent.

The model is made by Marta Szubert, Warszawa.  

Other microfossils in the exhibition   

[Norsk tekst]
Publisert 18. mai 2011 16:00