Protoctista

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Noun1.Protoctista - in most modern classifications, replacement for the Protista; includes: Protozoa; Euglenophyta; Chlorophyta; Cryptophyta; Heterokontophyta; Rhodophyta; unicellular protists and their descendant multicellular organisms: regarded as distinct from plants and animals
protoctist order - the order of protoctists
protoctist - any of the unicellular protists
division Protista, Protista - eukaryotic one-celled living organisms distinct from multicellular plants and animals: protozoa, slime molds, and eukaryotic algae
protoctist family - any of the families of Protoctista
protoctist genus - any genus of Protoctista
phylum Protozoa, Protozoa - in some classifications considered a superphylum or a subkingdom; comprises flagellates; ciliates; sporozoans; amoebas; foraminifers
division Heterokontophyta, Heterokontophyta - algae having chlorophyll a and usually c, and flagella of unequal lengths; terminology supersedes Chrysophyta in some classifications
Chrysophyta, division Chrysophyta - mostly freshwater eukaryotic algae having the chlorophyll masked by brown or yellow pigment; yellow-green and golden-brown algae and diatoms: Xanthophyceae, Chrysophyceae, Bacillariophyceae; some classification systems superseded or subsumed by Heterokontophyta
division Euglenophyta, Euglenophyta - free-swimming flagellate algae
Chlorophyta, division Chlorophyta - large division of chiefly freshwater eukaryotic algae that possess chlorophyll a and b, store food as starch, and cellulose cell walls; classes Chlorophyceae, Ulvophyceae, and Charophyceae; obviously ancestral to land plants
division Rhodophyta, Rhodophyta - lower plants; mostly marine and littoral eukaryotic algae
Cryptophyta, phylum Cryptophyta - a phylum in the kingdom Protoctista
kingdom - the highest taxonomic group into which organisms are grouped; one of five biological categories: Monera or Protoctista or Plantae or Fungi or Animalia
References in periodicals archive ?
As Case noted, attempted reconciliation of five Kingdoms (Bacteria, Protoctists, Animals, Plants, Fungi) with three Domains (Bacteria, Archaea, Eucarya) resulted in a "compromise" of six kingdoms (Archaebacteria, Eubacteria, Protista, Fungi, Plantae, Animalia)--an outcome that does not fully represent the intent of either the five-kingdom or three-domain system.
Anthropogenic Natural Unintentional Gas-to-particle conversions Internal combustion engines Forest fires Power plants Volcanoes (hot lava) Incinerators Viruses Jet engines Biogenic magnetite: magnetotactic Metal fumes (smelting, bacteria protoctists, mollusks, welding, etc.
protoctists, and bacteria], animals may be defined as multicellular,