Phaeocystida, also known as Phaeocystina,
is a group of
cercozoan
Cercozoa is a phylum of diverse single-celled eukaryotes. They lack shared morphological characteristics at the microscopic level, and are instead defined by molecular phylogenies of rRNA and actin or polyubiquitin. They were the first major e ...
s in the class
Phaeodarea. It was first described by
Ernst Haeckel in 1887 and treated traditionally as a suborder,
but later was raised to order level until
Cavalier-Smith
Thomas (Tom) Cavalier-Smith, FRS, FRSC, NERC Professorial Fellow (21 October 1942 – 19 March 2021), was a professor of evolutionary biology in the Department of Zoology, at the University of Oxford.
His research has led to disc ...
's classification lowered it again to suborder level. It belongs to the order
Eodarida, characterised by simpler silica skeletons or a lack thereof.
References
* Report on the Radiolaria. E Haeckel, 1887
* Report on the scientific results of the voyage of the HMS Challenger during the years 1873–1876. E Haeckel, Zoology series, 1887
External links
*
Phaeocystidaat the World Register of Marine Spacies (WoRMS)
Phaeodaria
Cercozoa orders
{{Cercozoa-stub