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Biota
(Life)
Prokaryotes
(Prokaryota)
Archaea
(Archaebacteria)
Euryarchaeota
Methanococci
Methanococcales (
4044107
)
Children (2 direct children, 32 direct and indirect children):
Methanocaldococcaceae
(tree size 12)
Methanococcaceae
(tree size 18)