''Platysulcus'' is an eukaryotic microorganism that was recently discovered to be the earliest diverging lineage of the
Heterokont
Heterokonts are a group of protists (formally referred to as Heterokonta, Heterokontae or Heterokontophyta). The group is a major line of eukaryotes. Most are algae, ranging from the giant multicellular kelp to the unicellular diatoms, which a ...
phylogenetic tree
A phylogenetic tree (also phylogeny or evolutionary tree Felsenstein J. (2004). ''Inferring Phylogenies'' Sinauer Associates: Sunderland, MA.) is a branching diagram or a tree showing the evolutionary relationships among various biological spec ...
.
It is the only member of the family Platysulcidae, order Platysulcida and class Platysulcea, of
uncertain taxonomic position within the phylum
Bigyra
Bigyra is a grouping of heterokont organisms.
It includes Bicosoecida, Blastocystis and Labyrinthulida.
It has also been described as containing Opalozoa, Bicoecia, and Sagenista. Phylogeny
The cladogram below shows the internal relationships w ...
.
It contains the only species ''P. tardus''.
Taxonomy
*Class Platysulcea
Cavalier-Smith 2017
**Order Platysulcida
Cavalier-Smith 2017
***Family Platysulcidae
Shiratori, Nkayama & Ishida 2015
****''Platysulcus''
Shiratori, Nkayama & Ishida 2015
*****''P. tardus''
Shiratori, Nkayama & Ishida 2015
References
External links
{{heterokont-stub
Heterokont genera