Korarchaeum 

Phylum: Korarchaeota
Image Credit: Microbe Wiki
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Nitrosopumilus 

Phylum: Thaumarchaeota
Image Credit: JGI Genome Portal
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Nitrososphaera 

Phylum: Thaumarchaeota
Image Credit: Microbe Wiki
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Methanopyrus 

Phylum: Euryarchaeota
Image Credit: Alchetron
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