Braarudosphaera bigelowii

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Braarudosphaera bigelowii
Temporal range: Late Triassic–present
Scientific classification
Domain: Eukaryota
(unranked): Haptophyta
Class: Prymnesiophyceae
Order: Coccosphaerales
Family: Braarudosphaeraceae
Genus: Braarudosphaera
Species: B. bigelowii
Binomial name
Braarudosphaera bigelowii
(Gran & Braarud) Deflandre

Braarudosphaera bigelowii is a coastal coccolithophore in the fossil record going back 100 million years. The family Braarudosphaeraceae are single-celled coastal phytoplanktonic algae with calcareous scales with five-fold symmetry, called pentaliths. With 12 sides, it has a dodecahedral structure, approximately 10 micrometers across.[1]


  1. ^ Discovery of an Endosymbiotic Nitrogen-Fixing Cyanobacterium UCYN-A in Braarudosphaera bigelowii (Prymnesiophyceae), Kyoko Hagino, Ryo Onuma, Masanobu Kawachi, Takeo Horiguchi, December 4, 2013