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Archaea (/ɑːrˈkiːə/ ar-KEE-
ə; sg.:
archaeon /ɑːrˈkiːən/ ar-KEE-ən) is
a domain of single-celled organisms.
These microorganisms lack cell
nuclei and are...
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A prokaryote (/proʊˈkærioʊt, -ət/, less
commonly spelled procaryote) is
a single-cell
organism whose cell
lacks a nucleus and
other membrane-bound organelles...
- the GTDB
release 08-RS214 (28th
April 2023). The
position of
clades with
a "question mark" are
based on the
additional phylogeny of the 16S rRNA-based...
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Euryarchaeota (from
Ancient Gr**** εὐρύς eurús, "broad, wide") is
a kingdom of archaea.
Euryarchaeota are
highly diverse and
include methanogens, which...
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Asgard or
Asgardarchaeota is
a proposed superphylum consisting of
a group of
archaea that
contain eukaryotic signature proteins. It
appears that the eukaryotes...
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DPANN is
a superphylum of
Archaea first proposed in 2013. Many
members show
novel signs of
horizontal gene
transfer from
other domains of life. They are...
- TACK is
a group of archaea, its name an
acronym for
Thaumarchaeota (now Nitrososphaerota), Aigarchaeota,
Crenarchaeota (now Thermoproteota), and Korarchaeota...
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Halobacterium (common
abbreviation Hbt.) is
a genus in the
family Halobacteriaceae. The
genus Halobacterium ("salt" or "ocean bacterium")
consists of...
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Methanobacterium is
a genus of the
Methanobacteria class in the
Archaea kingdom,
which produce methane as
a metabolic byproduct.
Despite the name, this...
- (also
known as Crenarchaea) are
prokaryotes that have been
classified as
a phylum of the
Archaea domain. Initially, the
Thermoproteota were
thought to...
