the root (no rank)
Viruses (domain)
ssRNA positive-strand viruses, no DNA stage (subkingdom)
Picornaviridae (family)
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Aichi virus (species)
Aphthovirus (genus)
avian encephalomyelitis virus (species)
black queen cell virus (species)
Cardiovirus (genus)
Drosophila C virus (species)
Enterovirus (genus)
Erbovirus (genus)
Hepatovirus (genus)
Kobuvirus (genus)
Parechovirus (genus)
Rhinovirus (genus)
sacbrood virus (species)
seal picornavirus 1 (species)
Seneca valley virus (species)
simian picornavirus 1 (species)
simian picornavirus 10 (species)
simian picornavirus 11 (species)
simian picornavirus 12 (species)
simian picornavirus 13 (species)
simian picornavirus 15 (species)
simian picornavirus 17 (species)
simian picornavirus 18 (species)
simian picornavirus 2 (species)
simian picornavirus 3 (species)
simian picornavirus 4 (species)
simian picornavirus 5 (species)
simian picornavirus 6 (species)
simian picornavirus 7 (species)
simian picornavirus 7' (species)
simian picornavirus 8 (species)
simian picornavirus 9 (species)
simian picornavirus N125 (species)
simian picornavirus N203 (species)