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Haptista is a proposed group of protists made up of centrohelids and haptophytes. Phylogenomic studies indicate that Haptista, together with Ancoracysta twista , forms a sister clade to the SAR + Telonemia supergroup, but it may also be sister to the Cryptista (+ Archaeplastida ).
Haptista. Haptista es un filo de protistas 3 4 5 que agrupa a las algas de Haptophyta y Rappemonada junto a los heliozoos de Centrohelida. Las haptofitas son algas que presentan cloroplastos con clorofilas a y c, que por el tipo de clorofila y por estar rodeados por cuatro membranas se supone que proceden de la endosimbiosis secundaria de un ...
Jul 23, 2022 · Haptista is a proposed group of protists made up of centrohelids and haptophytes. Phylogenomic studies indicate that Haptista, together with Ancoracysta twista, forms a sister clade to the SAR+Telonemia supergroup, but it may also be sister to the Cryptista (+Archaeplastida).
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. [2][3][4] This ending implies classification at the class rank rather than as a division.
Cryptista is a clade of alga-like eukaryotes. It is most likely related to Archaeplastida which includes plants and many algae, within the larger group Diaphoretickes. [2] Although it has sometimes placed along with Haptista in the group Hacrobia, within the kingdom Chromista, [3] most recent studies have found that Hacrobia is not a clade. [4] .
Haptophyta algae are unicellular, sometimes associated in simple colonies, very small and widespread in all oceans where they form one of the three major groups of phytoplankton, along with diatoms ( (Bacillariophyta)) and Dinoflagellata). They therefore play a very important role in the carbon cycle.
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Cavalier-Smith, T.; Chao, E. E.; Lewis, R. (2015): Multiple origins of Heliozoa from flagellate ancestors: New cryptist subphylum Corbihelia, superclass Corbistoma ...
