History of the taxon:

Etymology of the name:

Taxon: Betaflexiviridae Proposal: 2007.021-023P.v2.Betaflexiviridae.pdf  ICTV Report: Betaflexiviridae Reference:  

from the Ancient Greek βῆτα (bêta), the second letter of the Greek alphabet, and flexi, referring to the second family created from the division of the old family Flexiviridae, a group of  filamentous and highly flexible viruses; the suffix -viridae for family taxa