Chromidina Cortezi
''Chromidina'' is a genus of apostome ciliates of the family Opalinopsidae. Species of ''Chromidina'' are parasitic in the renal and pancreatic appendages of cephalopods. In 2016, a molecular study found that the closest relatives of ''Chromidina'' spp. were species of the apostome ''Pseudocollinia''. References

Oligohymenophorea Ciliate genera Taxa described in 1905 {{ciliate-stub ...
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Eukaryote
The eukaryotes ( ) constitute the Domain (biology), domain of Eukaryota or Eukarya, organisms whose Cell (biology), cells have a membrane-bound cell nucleus, nucleus. All animals, plants, Fungus, fungi, seaweeds, and many unicellular organisms are eukaryotes. They constitute a major group of Outline of life forms, life forms alongside the two groups of prokaryotes: the Bacteria and the Archaea. Eukaryotes represent a small minority of the number of organisms, but given their generally much larger size, their collective global biomass is much larger than that of prokaryotes. The eukaryotes emerged within the archaeal Kingdom (biology), kingdom Asgard (Archaea), Promethearchaeati and its sole phylum Promethearchaeota. This implies that there are only Two-domain system, two domains of life, Bacteria and Archaea, with eukaryotes incorporated among the Archaea. Eukaryotes first emerged during the Paleoproterozoic, likely as Flagellated cell, flagellated cells. The leading evolutiona ...
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