Haptophyte

Haptophytes
	Coccolithophore (Coccolithus pelagicus)
Scientific classification
Domain:	Eukaryota
Clade:	Diaphoretickes
Phylum:	Haptista
Subphylum:	Haptophytina; Hibberd, 1976 stat. nov. Cavalier-Smith, 2015
Classes & Orders
	Rappephyceae Pavlomulinales; ; Pavlovophyceae Pavlovales; ; Prymnesiophyceae s.s. (=Coccolithophyceae) †Discoasterales; Phaeocystales; Prymnesiales; Isochrysidales; Stephanolithiales; Coccolithales; †Eiffellithales; Syracosphaerales; †Arkhangelskiales; †Podorhabdales; ;
Synonyms
	Prymnesiophyta Green & Jordan, 1994; Prymnesiophyceae s.l. Casper, 1972 ex Hibberd, 1976; Haptophyceae s.l. Christensen, 1962 ex Silva, 1980; Haptophyta Hibberd, 1976;

The haptophytes, classified either as the Haptophyta, Haptophytina or Prymnesiophyta (named for Prymnesium), are a clade of algae.

The names Haptophyceae or Prymnesiophyceae are sometimes used instead. This ending implies classification at the class rank rather than as a division. Although the phylogenetics of this group has become much better understood in recent years, there remains some dispute over which rank is most appropriate.

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