History of the taxon:
Etymology of the name:
Taxon: Avsunviroidae; Proposal: Ratification 1998; : ; ICTV Report: Avsunviroidae; Reference: PMID: 11050945
from the species name Avocado sunblotch viroid; the suffix -viroidae for viroid family taxa is used for these infectious agents, consisting only of naked RNA