Ribosa is a group of lifeforms containing DNA and RNA viruses and cellular life. Another feature that all life forms within this group have is ribosomes.

It can be defined as as all living things with DNA or RNA.

Ribosa
Viruses

Adnaviria



Duplodnaviria



Monodnaviria



Riboviria



Ribozyviria



Varidnaviria




Cellular life (Prokaryotes and Eukaryotes)