Obazoa

Obazoa; Temporal range: Late Stenian - Present, 1031.4–0 Ma Had'n Archean Proterozoic Pha.
Scientific classification
(unranked):	Unikonta
(unranked):	Obazoa; Brown, 2013
Clades
	Breviatea; Apusomonadida; Opisthokonta;

Obazoa is a clade (a group of plants or animals that share an ancestor). It is a Unikont. Unikonts are one of the five superkingdoms in the classification of eukaryotes.

The Obazoa is made up of Breviatea, Apusomonadida and Opisthokonta. It does not include Amoebozoa, because that is a different clade. The connections between opisthokonts, breviates and apusomonads are not well known yet. Probably the Breviatea are the most basic of the three groups.^[1]^[2]^[3] RNA phylogenies (evolution clues) do not give much evidence that Obazoa is a clade.^[4] This could still mean Obazoa is from a very old ancestor, and there are not many clues left (because of its age).

Obazoa Media

Habitus of "flowering" Royal Fern (Osmunda regalis); natural occurence in a forest.
Euglena freshwater single celled organisms
Ancyromonas
Light microscopy of Gefionella okellyi. (a-d) Phase contrast (a-b) and differential interference contrast images of live cells. epi = epipodium; F1 = posterior flagellum; F2 = anterior flagellum; gr = groove. Scale bar: 5 µm.
Collodictyon pseudopodoa (extracted)
Leocarpus fragilis 10649909
Undescribed breviates 2025 Aguilera-Campos-et-al
Scanning electron microscopic image of Podomonas kaiyoae grown under axenic conditions. AF, anterior flagellum; PF, posterior flagellum; T, tusk. Brackets indicate the acronemes. Arrows and arrowheads indicate the pseudopodium. Scale bar = 5 μm.
Amanita muscaria 3 vliegenzwammen op rij
A 9 millimeter-long female jumping spider found in Newport News, Virginia.The lens setup utilized was a Nikon 50mm f/1.4D reverse mounted on a Nikon 70-300mm f/4-5.6G .*13 images of variable focus were captured and composited in CombineZM, a focus stacking program.

References

↑ Eme, Laura. On the Age of Eukaryotes: Evaluating Evidence from Fossils and Molecular Clocks (in en). Cold Spring Harbor Perspectives in Biology 6 (8) (2014). p. a016139. doi:10.1101/cshperspect.a016139.
↑ Ruggiero, Michael A.. Correction: A Higher Level Classification of All Living Organisms. PLOS ONE 10 (6) (2015-06-11). p. e0130114. doi:10.1371/journal.pone.0130114.
↑ Cavalier-Smith, Thomas. Multigene phylogeny resolves deep branching of Amoebozoa. Molecular Phylogenetics and Evolution 83 (2015-02-01). p. 293–304. doi:10.1016/j.ympev.2014.08.011.
↑ Orr, Russell J. S.. Enigmatic Diphyllatea eukaryotes: Culturing and targeted PacBio RS amplicon sequencing reveals a higher order taxonomic diversity and global distribution. BMC Evolutionary Biology 18 (1) (2017-10-08). p. 115. doi:10.1186/s12862-018-1224-z.

[1] Eme, Laura. On the Age of Eukaryotes: Evaluating Evidence from Fossils and Molecular Clocks (in en). Cold Spring Harbor Perspectives in Biology 6 (8) (2014). p. a016139. doi:10.1101/cshperspect.a016139.

[2] Ruggiero, Michael A.. Correction: A Higher Level Classification of All Living Organisms. PLOS ONE 10 (6) (2015-06-11). p. e0130114. doi:10.1371/journal.pone.0130114.

[3] Cavalier-Smith, Thomas. Multigene phylogeny resolves deep branching of Amoebozoa. Molecular Phylogenetics and Evolution 83 (2015-02-01). p. 293–304. doi:10.1016/j.ympev.2014.08.011.

[4] Orr, Russell J. S.. Enigmatic Diphyllatea eukaryotes: Culturing and targeted PacBio RS amplicon sequencing reveals a higher order taxonomic diversity and global distribution. BMC Evolutionary Biology 18 (1) (2017-10-08). p. 115. doi:10.1186/s12862-018-1224-z.

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