Etymology of Taxon Names

The information below provides a list containing descriptions of the origins of ICTV taxon names starting at the rank of realm and going down to the rank of family. This information is derived from the proposals that were submitted when each taxon was created. Links to these proposals, links to ICTV report chapters, and links to publications (through PMIDs) are provided when available.

We thank Stuart Siddell for compiling this list of name origins. Etymological information for taxa below the rank of family, can be found in the relevant ICTV Online (10th) Report chapters. If you have any comments or corrections, please contact us by sending an email to info@ictv.global.

Filter the list of name origins using the selection options below:

Enter all or part of a taxon name (family rank or higher)

Floreoviria

Taxon: Geplafuvirales Rank: order
Lineage: Floreoviria | Shotokuvirae | Cressdnaviricota | Repensiviricetes | Geplafuvirales
Proposal: 2019.012D.zip

Etymology: from geminivirus, and also plants and fungi, referring to the hosts of viruses in the taxon; the suffix -virales for order taxa

Taxon: Geminiviridae Rank: family
Lineage: Floreoviria | Shotokuvirae | Cressdnaviricota | Repensiviricetes | Geplafuvirales | Geminiviridae
Proposal: Ratification_1993.pdf
Report Chapter: Geminiviridae
PubMed ID: 18256781

Etymology: from the Latin geminus meaning "twin", referring to the characteristic twinned (geminate) virion morphology of viruses in the family; the suffix -viridae for family taxa

Taxon: Becurtovirus Rank: genus
Lineage: Floreoviria | Shotokuvirae | Cressdnaviricota | Repensiviricetes | Geplafuvirales | Geminiviridae | Becurtovirus
Report Chapter: Geminiviridae
Taxon: Begomovirus Rank: genus
Lineage: Floreoviria | Shotokuvirae | Cressdnaviricota | Repensiviricetes | Geplafuvirales | Geminiviridae | Begomovirus
Report Chapter: Geminiviridae
Taxon: Capulavirus Rank: genus
Lineage: Floreoviria | Shotokuvirae | Cressdnaviricota | Repensiviricetes | Geplafuvirales | Geminiviridae | Capulavirus
Report Chapter: Geminiviridae
Taxon: Citlodavirus Rank: genus
Lineage: Floreoviria | Shotokuvirae | Cressdnaviricota | Repensiviricetes | Geplafuvirales | Geminiviridae | Citlodavirus
Report Chapter: Geminiviridae
Taxon: Curtovirus Rank: genus
Lineage: Floreoviria | Shotokuvirae | Cressdnaviricota | Repensiviricetes | Geplafuvirales | Geminiviridae | Curtovirus
Report Chapter: Geminiviridae
Taxon: Eragrovirus Rank: genus
Lineage: Floreoviria | Shotokuvirae | Cressdnaviricota | Repensiviricetes | Geplafuvirales | Geminiviridae | Eragrovirus
Report Chapter: Geminiviridae
Taxon: Grablovirus Rank: genus
Lineage: Floreoviria | Shotokuvirae | Cressdnaviricota | Repensiviricetes | Geplafuvirales | Geminiviridae | Grablovirus
Report Chapter: Geminiviridae
Taxon: Maldovirus Rank: genus
Lineage: Floreoviria | Shotokuvirae | Cressdnaviricota | Repensiviricetes | Geplafuvirales | Geminiviridae | Maldovirus
Report Chapter: Geminiviridae
Taxon: Mastrevirus Rank: genus
Lineage: Floreoviria | Shotokuvirae | Cressdnaviricota | Repensiviricetes | Geplafuvirales | Geminiviridae | Mastrevirus
Report Chapter: Geminiviridae
Taxon: Mulcrilevirus Rank: genus
Lineage: Floreoviria | Shotokuvirae | Cressdnaviricota | Repensiviricetes | Geplafuvirales | Geminiviridae | Mulcrilevirus
Report Chapter: Geminiviridae
Taxon: Opunvirus Rank: genus
Lineage: Floreoviria | Shotokuvirae | Cressdnaviricota | Repensiviricetes | Geplafuvirales | Geminiviridae | Opunvirus
Report Chapter: Geminiviridae
Taxon: Topilevirus Rank: genus
Lineage: Floreoviria | Shotokuvirae | Cressdnaviricota | Repensiviricetes | Geplafuvirales | Geminiviridae | Topilevirus
Report Chapter: Geminiviridae
Taxon: Topocuvirus Rank: genus
Lineage: Floreoviria | Shotokuvirae | Cressdnaviricota | Repensiviricetes | Geplafuvirales | Geminiviridae | Topocuvirus
Report Chapter: Geminiviridae
Taxon: Turncurtovirus Rank: genus
Lineage: Floreoviria | Shotokuvirae | Cressdnaviricota | Repensiviricetes | Geplafuvirales | Geminiviridae | Turncurtovirus
Report Chapter: Geminiviridae
Taxon: Genomoviridae Rank: family
Lineage: Floreoviria | Shotokuvirae | Cressdnaviricota | Repensiviricetes | Geplafuvirales | Genomoviridae
Proposal: 2015.002a-gF.A.v2.Genomoviridae.pdf

Etymology: from geminivirus-like and no movement, indicating the lack of a movement protein gene in viruses of the family; the suffix -viridae for family taxa

Taxon: Geplanaviridae Rank: family
Lineage: Floreoviria | Shotokuvirae | Cressdnaviricota | Repensiviricetes | Geplafuvirales | Geplanaviridae
Proposal: 2023.020D.Geplafuvirales_1nf_18ng_30nsp.zip

Etymology: from gemini-like Rep plant and animal associated viruses, referring to the geminivirus Rep sequence (GRS) motif found in members of the family; the suffix ‑viridae for family taxa

Pleomoviria

Taxon: Pleomoviria Rank: realm
Lineage: Pleomoviria
Proposal: 2025.002G.Ac.v2.Monodnaviria_reorg_4nr.zip

Etymology: a reference to the pleomorphic morphology of viruses in this realm; the suffix ‑viria for realm taxa

Taxon: Trapavirae Rank: kingdom
Lineage: Pleomoviria | Trapavirae
Proposal: 2019.005G.zip

Etymology: from Trapani, Italy, where Halorubrum pleomorphic virus 1, a member of the taxon, was discovered; the suffix -virae for kingdom taxa

Taxon: Calorviricota Rank: phylum
Lineage: Pleomoviria | Trapavirae | Calorviricota
Proposal: 2024.004A.Thalassapleoviridae_newphylum_v1.zip

Etymology: from the Latin calor, meaning heat, referring to the environmental conditions under which these viruses replicate; the suffix -viricota for phylum taxa

Taxon: Caminiviricetes Rank: class
Lineage: Pleomoviria | Trapavirae | Calorviricota | Caminiviricetes
Proposal: 2024.004A.Thalassapleoviridae_newphylum_v1.zip

Etymology: from the Latin camini, meaning chimneys, referring to the chimney-like deep sea hydrothermal vents in which Archaeoglobales and their viruses thrive; the suffix -vircetes for class taxa

Taxon: Ageovirales Rank: order
Lineage: Pleomoviria | Trapavirae | Calorviricota | Caminiviricetes | Ageovirales
Proposal: 2024.004A.Thalassapleoviridae_newphylum_v1.zip

Etymology: a truncation of Archaeoglobus and Geoglobus, two genera of archaea that host viruses in the order; the suffix -virales for order taxa

Taxon: Thalassapleoviridae Rank: family
Lineage: Pleomoviria | Trapavirae | Calorviricota | Caminiviricetes | Ageovirales | Thalassapleoviridae
Proposal: 2024.004A.Thalassapleoviridae_newphylum_v1.zip

Etymology: from Thalassa, th Greek goddess of the sea, referring to the sample source, and from pleolipovirus; the suffix -viridae for family taxa

Taxon: Saleviricota Rank: phylum
Lineage: Pleomoviria | Trapavirae | Saleviricota
Proposal: 2019.005G.zip

Etymology: from the Italian sale, meaning "salt", referencing the halophilic hosts of most pleolipovirids; the suffix -viricota for phylum taxa

Taxon: Huolimaviricetes Rank: class
Lineage: Pleomoviria | Trapavirae | Saleviricota | Huolimaviricetes
Proposal: 2019.005G.zip

Etymology: from the Finnish huolimaton, meaning "sloppy", referencing the unmethodical assembly of pleolipovirions; the suffix -viricetes for class taxa

Taxon: Haloruvirales Rank: order
Lineage: Pleomoviria | Trapavirae | Saleviricota | Huolimaviricetes | Haloruvirales
Proposal: 2019.005G.zip

Etymology: from Halorubrum pleomorphic virus 1, HRPV-1, a member of the taxon; the suffix -virales for order taxa

Taxon: Nanopleoviridae Rank: family
Lineage: Pleomoviria | Trapavirae | Saleviricota | Huolimaviricetes | Haloruvirales | Nanopleoviridae
Proposal: 2025.004A.Ac.v3.Pleomorphic_1nf_2ns.zip

Etymology: from Nanohaloarchaea and pleomorphic, referring to the host and inferred morphology of viruses in the family; the suffix ‑viridae for family taxa

Taxon: Pleolipoviridae Rank: family
Lineage: Pleomoviria | Trapavirae | Saleviricota | Huolimaviricetes | Haloruvirales | Pleolipoviridae
Proposal: 2015.042a-oB.A.v3.Pleolipoviridae.pdf
Report Chapter: Pleolipoviridae

Etymology: from the Ancient Greek πλεῖον (pleo), meaning "many", and λῐ́πος (lípos), meaning “animal fat”, referring to the pleomorphic shape and presence of an envelope in virions of viruses in the family; the suffix -viridae for family taxa

Taxon: Alphapleolipovirus Rank: genus
Lineage: Pleomoviria | Trapavirae | Saleviricota | Huolimaviricetes | Haloruvirales | Pleolipoviridae | Alphapleolipovirus
Report Chapter: Pleolipoviridae
Taxon: Betapleolipovirus Rank: genus
Lineage: Pleomoviria | Trapavirae | Saleviricota | Huolimaviricetes | Haloruvirales | Pleolipoviridae | Betapleolipovirus
Report Chapter: Pleolipoviridae
Taxon: Gammapleolipovirus Rank: genus
Lineage: Pleomoviria | Trapavirae | Saleviricota | Huolimaviricetes | Haloruvirales | Pleolipoviridae | Gammapleolipovirus
Report Chapter: Pleolipoviridae

Riboviria

Taxon: Riboviria Rank: realm
Lineage: Riboviria
Proposal: 2017.006G.A.v3.Riboviria.zip

Etymology: from ribo, for ribonucleic acid, referring to the genome of viruses in the realm; the suffix -viria for realm taxa

Taxon: Orthornavirae Rank: kingdom
Lineage: Riboviria | Orthornavirae
Proposal: 2019.006G.zip

Etymology: from the Greek ὀρθός (orthós) meaning "straight" or "true" and RNA for ribonucleic acid; the suffix -virae for kingdom taxa

Taxon: Ambiviricota Rank: phylum
Lineage: Riboviria | Orthornavirae | Ambiviricota
Proposal: 2023.007F.Ambiviricota_nphy.zip

Etymology: from ambivirus(es), referring to the non-overlapping ambisense orientation of open reading frames in the genome of members of the taxon; the suffix ‑viricota for phylum taxa

Taxon: Suforviricetes Rank: class
Lineage: Riboviria | Orthornavirae | Ambiviricota | Suforviricetes
Proposal: 2023.007F.Ambiviricota_nphy.zip

Etymology: to honour Suvi Sutela and Marc Forgia, the co-discoveres of ambiviruses in endomycorrhizal fungi; the suffix ‑viricetes for class taxa

Taxon: Crytulvirales Rank: order
Lineage: Riboviria | Orthornavirae | Ambiviricota | Suforviricetes | Crytulvirales
Proposal: 2023.007F.Ambiviricota_nphy.zip

Etymology: from Cryphonectria and Tulasnella, referring to the host genera for fungi in which ambiviruses were first discovered; the suffix ‑virales for order taxa

Taxon: Dumbiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Ambiviricota | Suforviricetes | Crytulvirales | Dumbiviridae
Proposal: 2023.007F.Ambiviricota_nphy.zip

Etymology: from the Latin duo, meaning two, and ambivirus, referring to one of several families in the parent taxon; the suffix ‑viridae for family taxa

Taxon: Quambiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Ambiviricota | Suforviricetes | Crytulvirales | Quambiviridae
Proposal: 2023.007F.Ambiviricota_nphy.zip

Etymology: from the Latin quattuor, meaning four, and ambivirus, referring to one of several families in the parent taxon; the suffix ‑viridae for family taxa

Taxon: Trimbiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Ambiviricota | Suforviricetes | Crytulvirales | Trimbiviridae
Proposal: 2023.007F.Ambiviricota_nphy.zip

Etymology: from the Latin tria, meaning three, and ambivirus, referring to one of several families in the parent taxon; the suffix ‑viridae for family taxa

Taxon: Unambiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Ambiviricota | Suforviricetes | Crytulvirales | Unambiviridae
Proposal: 2023.007F.Ambiviricota_nphy.zip

Etymology: from the Latin unus, meaning "one", and ambivirus, referring to one of several families in the parent taxon; the suffix ‑viridae for family taxa

Taxon: Artimaviricota Rank: phylum
Lineage: Riboviria | Orthornavirae | Artimaviricota
Proposal: 2024.039D.Artimaviricota_np.zip

Etymology: from the Lithuanian artima, meaning close, and RT (phonetically "arti"), referring to the potential link to viral RTs; the suffix -viricota for phylum taxa

Taxon: Furtirnaviricetes Rank: class
Lineage: Riboviria | Orthornavirae | Artimaviricota | Furtirnaviricetes
Proposal: 2024.039D.Artimaviricota_np.zip

Etymology: from the Latin furtivus, meaning hidden, secret, and RNA; the suffix -viricetes for class taxa

Taxon: Divaquavirales Rank: order
Lineage: Riboviria | Orthornavirae | Artimaviricota | Furtirnaviricetes | Divaquavirales
Proposal: 2024.039D.Artimaviricota_np.zip

Etymology: from diverse aquatic, referring to the environments in which viruses in the order were discovered; the suffix -virales for order taxa

Taxon: Hakuzoviridae Rank: family
Lineage: Riboviria | Orthornavirae | Artimaviricota | Furtirnaviricetes | Divaquavirales | Hakuzoviridae
Proposal: 2024.039D.Artimaviricota_np.zip

Etymology: from Hakuzo, the White elephant which is a signature of Fugen Bosatsu (Samantabhadra in Buddhism), referring to the Fugen-dake, the largest volcano of the Mt. Unzen, the area where hot spring RNA virus 1 was discovered; the suffix -viridae for family taxa

Taxon: Duplornaviricota Rank: phylum
Lineage: Riboviria | Orthornavirae | Duplornaviricota
Proposal: 2019.006G.zip

Etymology: from the Italian duplo meaning "double" and RNA for ribonucleic acid, a reference to viruses in this phylum having double-stranded RNA genomes; the suffix -viricota for phylum taxa

Taxon: Chrymotiviricetes Rank: class
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes
Proposal: 2019.006G.zip

Etymology: from Chrysoviridae, Megabirnaviridae, and the now defunct Totiviridae, three virus families originally included in the taxon; the suffix -viricetes for class taxa

Taxon: Ghabrivirales Rank: order
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales
Proposal: 2019.006G.zip

Etymology: in honour of Said Ghabrial, a pioneer in the study of the viruses in this order; the suffix -virales for order taxa

Taxon: Alphatotivirineae Rank: suborder
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Alphatotivirineae
Proposal: 2023.015F.Ghabrivirales_reorg.zip

Etymology: from the Ancient Greek ἄλφα (álpha), the first letter of the Greek alphabet and the now defunct family Totiviridae (from the Latin toti, meaning "undivided" or "whole" ), one of the founding taxa of the order Ghabrivirales; the suffix ‑virineae for suborder taxa

Taxon: Botybirnaviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Alphatotivirineae | Botybirnaviridae
Proposal: 2023.015F.Ghabrivirales_reorg.zip

Etymology: from, Botrytis porri, the host of Botrytis porri RNA virus 1, and the bi-segmented dsRNA genome of members of the family; the suffix ‑viridae for family taxa

Taxon: Chrysoviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Alphatotivirineae | Chrysoviridae
Proposal: Ratification_2002a.pdf
Report Chapter: Chrysoviridae
PubMed ID: 5191625

Etymology: from the Greek chrysómeaning “gold”, derived from the specific epithet of Penicillium chrysogenum, the fungal host of Penicillium chrysogenum virus, a member of the virus family; the suffix -viridae for family taxa

Taxon: Alphachrysovirus Rank: genus
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Alphatotivirineae | Chrysoviridae | Alphachrysovirus
Report Chapter: Chrysoviridae
Taxon: Betachrysovirus Rank: genus
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Alphatotivirineae | Chrysoviridae | Betachrysovirus
Report Chapter: Chrysoviridae
Taxon: Fusagraviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Alphatotivirineae | Fusagraviridae
Proposal: 2023.015F.Ghabrivirales_reorg.zip

Etymology: from Fusarium graminearum, host of Fusarium graminearum virus 3, a member of the family; the suffix ‑viridae for family taxa

Taxon: Megabirnaviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Alphatotivirineae | Megabirnaviridae
Proposal: 2010.002a-gF.A.v1.Megabirnaviridae.zip
Report Chapter: Megabirnaviridae

Etymology: from the Ancient Greek μέγας (mégas), meaning “great", and Birnaviridae, referring to the size of the bisegmented dsRNA genome of viruses in the family; the suffix -viridae for family taxa

Taxon: Megabirnavirus Rank: genus
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Alphatotivirineae | Megabirnaviridae | Megabirnavirus
Report Chapter: Megabirnaviridae
Taxon: Monocitiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Alphatotivirineae | Monocitiviridae
Proposal: 2023.015F.Ghabrivirales_reorg.zip

Etymology: from monocistronic toti-like viruses; referring to the genome organisation of members of the family and the relationship to totiviruses; the suffix ‑viridae for family taxa

Taxon: Orthototiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Alphatotivirineae | Orthototiviridae
Proposal: 2023.015F.Ghabrivirales_reorg.zip
Report Chapter: Orthototiviridae

Etymology: from the Ancient Greek ὀρθός (orthos), meaning “correct” or “straight” and the Latin toti, meaning "undivided" or "whole", referring to the mono-segmented dsRNA genome of viruses in the family; the suffix -viridae for family taxa

Taxon: Phlegiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Alphatotivirineae | Phlegiviridae
Proposal: 2023.015F.Ghabrivirales_reorg.zip

Etymology: from Phlebiopsis gigantea, the host of Phlebiopsis gigantea large virus 1, a member of the family; the suffix ‑viridae for family taxa

Taxon: Pseudototiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Alphatotivirineae | Pseudototiviridae
Proposal: 2023.015F.Ghabrivirales_reorg.zip

Etymology: from the Ancient Greek ψευδής (pseudes), meaning"false" and the addition of the vowel o; referring to the earlier placement of members of the family in the now defunct Totiviridae; the suffix ‑viridae for family taxa

Taxon: Quadriviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Alphatotivirineae | Quadriviridae
Proposal: 2012.001a-gF.A.v4.Quadriviridae.zip
Report Chapter: Quadriviridae

Etymology: from the Latin quattuor, meaning "four", referring to the quadripartite nature of the genome of viruses in the family; the suffix -viridae for family taxa

Taxon: Quadrivirus Rank: genus
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Alphatotivirineae | Quadriviridae | Quadrivirus
Report Chapter: Quadriviridae
Taxon: Spiciviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Alphatotivirineae | Spiciviridae
Proposal: 2023.015F.Ghabrivirales_reorg.zip

Etymology: from Spissistilus festinus and Circulifer tenellus, the hosts of the first reported viruses in the family; the suffix ‑viridae for family taxa

Taxon: Betatotivirineae Rank: suborder
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Betatotivirineae
Proposal: 2023.015F.Ghabrivirales_reorg.zip

Etymology: from the Ancient Greek βῆτα (bêta), the second letter of the Greek alphabet and the now defunct family Totiviridae, one of the founding taxa of the order Ghabrivirales; the suffix ‑virineae for suborder taxa

Taxon: Artiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Betatotivirineae | Artiviridae
Proposal: 2023.015F.Ghabrivirales_reorg.zip
Report Chapter: Artiviridae

Etymology: from arthropod totivirus, referring to the hosts of members in the family and the relationship to totiviruses; the suffix ‑viridae for family taxa

Taxon: Giardiaviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Betatotivirineae | Giardiaviridae
Proposal: 2023.015F.Ghabrivirales_reorg.zip

Etymology: from Giardia lamblia, host of Giardia lamblia virus, a member of the family; the suffix ‑viridae for family taxa

Taxon: Inseviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Betatotivirineae | Inseviridae
Proposal: 2023.015F.Ghabrivirales_reorg.zip
Report Chapter: Inseviridae

Etymology: from insect toti-like virus, referring to the host of viruses in the family and the relationship to totiviruses; the suffix ‑viridae for family taxa

Taxon: Lebotiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Betatotivirineae | Lebotiviridae
Proposal: 2023.015F.Ghabrivirales_reorg.zip
Report Chapter: Lebotiviridae

Etymology: from Leptopilina boulardi toti-like virus, a member of the family; the suffix ‑viridae for family taxa

Taxon: Megatotiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Betatotivirineae | Megatotiviridae
Proposal: 2023.015F.Ghabrivirales_reorg.zip

Etymology: from the Ancient Greek μέγας (mégas), meaning “great or large”, referring to the much larger genome size of members of the family when compared to totiviruses; the suffix ‑viridae for family taxa

Taxon: Ootiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Betatotivirineae | Ootiviridae
Proposal: 2023.015F.Ghabrivirales_reorg.zip

Etymology: derived from oomycetous toti-like virus, referring to the host of virus members in the family and the relationship to totiviruses; the suffix ‑viridae for family taxa

Taxon: Pistolviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Betatotivirineae | Pistolviridae
Proposal: 2023.015F.Ghabrivirales_reorg.zip
Report Chapter: Pistolviridae

Etymology: from piscine toti-like, referring to the hosts of viruses in the family and the relationship to totiviruses; the suffix ‑viridae for family taxa

Taxon: Yadonushiviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Betatotivirineae | Yadonushiviridae
Proposal: 2023.015F.Ghabrivirales_reorg.zip

Etymology: from the Japanese Yadonushi meaning "owner (Nushi) of a house to stay (Yado)", referring to the trans-encapsidation of yadokarivirus RNA and RdRP; the suffix ‑viridae for family taxa

Taxon: Gammatotivirineae Rank: suborder
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Gammatotivirineae
Proposal: 2023.015F.Ghabrivirales_reorg.zip

Etymology: from the Ancient Greek γάμμα (gámma), the third letter of the Greek alphabet and the now defunct family Totiviridae, one of the founding taxa of the order Ghabrivirales; the suffix virineae for suborder taxa

Taxon: Alternaviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Chrymotiviricetes | Ghabrivirales | Gammatotivirineae | Alternaviridae
Proposal: 2022.001F.Alternaviridae_newfam.zip
Report Chapter: Alternaviridae

Etymology: from Alternaria alternata, the name of the fungal host of the earliest isolate, and RNA for ribonucleic acid, referring to the type of nucleic acid comprising the genome of viruses in the family; the suffix -viridae for family taxa

Taxon: Resentoviricetes Rank: class
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Resentoviricetes
Proposal: 2019.006G.zip

Etymology: from respiratory enteric orphan, referring to the tropism and an early lack of disease association of some viruses in the taxon ; the suffix -viricetes for class taxa

Taxon: Reovirales Rank: order
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Resentoviricetes | Reovirales
Proposal: 2019.006G.zip

Etymology: from reo, an acronym of respiratory enteric orphan viruses, referring to the tropism and an early lack of disease association of some viruses in the taxon; the suffix -virales for order taxa

Taxon: Sedoreoviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Resentoviricetes | Reovirales | Sedoreoviridae
Proposal: 2020.028M.R.Reovirales_2nfam.zip
Report Chapter: Sedoreoviridae

Etymology: from the Latin sedo, meaning "smooth", referring to the appearance of the core particles of viruses in the family, and reo, for respiratory enteric orphan, referring to the tropism and lack of disease association of some members of the virus family; the suffix -viridae for family taxa

Taxon: Cardoreovirus Rank: genus
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Resentoviricetes | Reovirales | Sedoreoviridae | Cardoreovirus
Report Chapter: Sedoreoviridae
Taxon: Mimoreovirus Rank: genus
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Resentoviricetes | Reovirales | Sedoreoviridae | Mimoreovirus
Report Chapter: Sedoreoviridae
Taxon: Orbivirus Rank: genus
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Resentoviricetes | Reovirales | Sedoreoviridae | Orbivirus
Report Chapter: Sedoreoviridae
Taxon: Phytoreovirus Rank: genus
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Resentoviricetes | Reovirales | Sedoreoviridae | Phytoreovirus
Report Chapter: Sedoreoviridae
Taxon: Rotavirus Rank: genus
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Resentoviricetes | Reovirales | Sedoreoviridae | Rotavirus
Report Chapter: Sedoreoviridae
Taxon: Seadornavirus Rank: genus
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Resentoviricetes | Reovirales | Sedoreoviridae | Seadornavirus
Report Chapter: Sedoreoviridae
Taxon: Spinareoviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Resentoviricetes | Reovirales | Spinareoviridae
Proposal: 2020.028M.R.Reovirales_2nfam.zip
Report Chapter: Spinareoviridae

Etymology: from the Latin spina, meaning “spike”, referring to the presence of spikes or turrets on the surface of the core particles of viruses in the family, and reo for respiratory enteric orphan, referring to the tropism and lack of disease association of some members of the virus family; the suffix -viridae for family taxa

Taxon: Aquareovirus Rank: genus
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Resentoviricetes | Reovirales | Spinareoviridae | Aquareovirus
Report Chapter: Spinareoviridae
Taxon: Coltivirus Rank: genus
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Resentoviricetes | Reovirales | Spinareoviridae | Coltivirus
Report Chapter: Spinareoviridae
Taxon: Cypovirus Rank: genus
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Resentoviricetes | Reovirales | Spinareoviridae | Cypovirus
Report Chapter: Spinareoviridae
Taxon: Dinovernavirus Rank: genus
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Resentoviricetes | Reovirales | Spinareoviridae | Dinovernavirus
Report Chapter: Spinareoviridae
Taxon: Fijivirus Rank: genus
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Resentoviricetes | Reovirales | Spinareoviridae | Fijivirus
Report Chapter: Spinareoviridae
Taxon: Idnoreovirus Rank: genus
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Resentoviricetes | Reovirales | Spinareoviridae | Idnoreovirus
Report Chapter: Spinareoviridae
Taxon: Mycoreovirus Rank: genus
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Resentoviricetes | Reovirales | Spinareoviridae | Mycoreovirus
Report Chapter: Spinareoviridae
Taxon: Orthoreovirus Rank: genus
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Resentoviricetes | Reovirales | Spinareoviridae | Orthoreovirus
Report Chapter: Spinareoviridae
Taxon: Oryzavirus Rank: genus
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Resentoviricetes | Reovirales | Spinareoviridae | Oryzavirus
Report Chapter: Spinareoviridae
Taxon: Vidaverviricetes Rank: class
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Vidaverviricetes
Proposal: 2019.006G.zip

Etymology: to honour Anne K. Vidaver, who co-discovered Pseudomonas phage phi6; the suffix -viricetes for class taxa

Taxon: Mindivirales Rank: order
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Vidaverviricetes | Mindivirales
Proposal: 2019.006G.zip

Etymology: to honour Leonard Mindich, who contributed significantly to cystovirid research; the suffix -virales for order taxa

Taxon: Cystoviridae Rank: family
Lineage: Riboviria | Orthornavirae | Duplornaviricota | Vidaverviricetes | Mindivirales | Cystoviridae
Proposal: Ratification_1978.pdf
Report Chapter: Cystoviridae
PubMed ID: 16789137

Etymology: phonetically from the Greek kystis, meaning “bladder” or “sack”, referring to the virion morphology of viruses in the family; the suffix -viridae for family taxa

Taxon: Kitrinoviricota Rank: phylum
Lineage: Riboviria | Orthornavirae | Kitrinoviricota
Proposal: 2019.006G.zip

Etymology: from the Ancient Greek κίτρινος (kítrinos) meaning "yellow", a reference to yellow fever virus, a member of the taxon; the suffix -viricota for phylum taxa

Taxon: Alsuviricetes Rank: class
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Alsuviricetes
Proposal: 2019.006G.zip

Etymology: from alphavirus supergroup, referring to a historical name for some members of the taxon ; the suffix -viricetes for class taxa

Taxon: Hepelivirales Rank: order
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Alsuviricetes | Hepelivirales
Proposal: 2019.006G.zip

Etymology: from hepevirus-like, referring to the family Hepeviridae included in this taxon; the suffix -virales for order taxa

Taxon: Alphatetraviridae Rank: family
Lineage: Riboviria | Orthornavirae | Kitrinoviricota | Alsuviricetes | Hepelivirales | Alphatetraviridae
Proposal: 2010.001a-qI.A.v4.Tetraviridae.zip
Report Chapter: Alphatetraviridae

Etymology: from the Ancient Greek ἄλφα (álpha), the first letter of the Greek alphabet and τετρα (tetra), the Greek cardinal 4, referring to the relationship to viruses of the Alpha-like supergroup in the replicase region and the T=4 capsid architecture that define the family; the suffix -viridae for family taxa