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Riboviria
Ribozyviria/viroid
image Phylum: Kitrinoviricota

Single-stranded RNA viruses of the Kitrinoviricota phylum are characterized by a homologous RNA-dependent RNA polymerase (Pfam RdRP_2 or RdRP_3 families). Their capsid are either icosahedral (T=1, 3 or 4) or helical.

Most viruses are classified under Baltimore as ssRNA (+) and some as dsRNA viruses.
Class: Alsuviricetes
 (Pfam RdRP_2 family; Alpha-type capping)
Order: Hepelivirales

Order: Martellivirales
Order: Tymovirales

Class: Magsaviricetes
 (Noda-type pol; Alpha-type capping)
Order: Nodamuvirales

(Pfam RdRP_1 family)

Class: Flasuviricetes
(PFAM NS5 RdRp, Cell-type capping)
Order: Amarillovirales
(Pfam RdRP_3, FAD capping)
Class: Tolucaviricetes
 (Pfam RdRP_3 family; no capping?)
Order: Tolivirales
Tombusviridae satellites Order: Unassigned

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