Kingdom_Division/Phylum
Kingdom Protista was defined by Whittaker (1969) as composed of "organisms which are unicellular or unicellular-colonial and which form no tissues".
Division/Phylum: Haptophyta was established by Hibbert, 1976, emend. Cavalier-Smith, 1986
Cavalier-Smith, T. 1986. The kingdom Chromista: origin and systematics. In: Progress in phycological research. Vol. 4. In: Round, F.E. & Chapman, D.J. (Eds) pp. 309-347. Bristol: Bipress Ltd.
Haeckel, E. 1866. Generelle Morphologie der Organismen. Vol. II. Berlin: Georg Reimer
Hibberd, D. J. 1976. The ultrastructure and taxonomy of the Chrysophyceae and Prymnesiophyceae (Haptophyceae): a survey with some new observations on the ultrastructure of the Chrysophyceae. - Journal of the Linnean Society of London, Botany 72: 55–80.