Discoaster

Discoaster
Temporal range:
Discoaster surculus, about 15 μm across
Scientific classification
Domain: Eukaryota
Clade: Haptista
Division: Haptophyta
Class: Prymnesiophyceae
Order: †Discoasterales
Family: †Discoasteraceae
Genus: †Discoaster
S.H. Tan, 1931
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Discoaster is a genus of extinct star-shaped marine algae, with calcareous exoskeletons of between 5-40 μm across that are abundant as nanofossils in tropical deep-ocean deposits of Neogene age. Discoaster belongs to the haptophytes. About 100 species can be recognized.

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