Virus (biology) can be classified in several ways, such as by their geometry, by whether they have envelopes, by the identity of the host organism they can infect, by mode of transmission, or by the type of disease they cause. The most useful classification is probably by the type of nucleic acid the virus contains and its mode of expression. This classification was proposed by Nobel prize winner David Baltimore. It should be noted that none of these classifications are expected to be phylogenetic, as viruses may not share a common origin. ==Overview== The various forms of viruses arise because one of the two strands of DNA in which all cellular life forms store their genetic information is redundant, so that viruses can have either single-stranded or double-stranded genomes. Furthermore, some viruses store their genome in RNA rather than in DNA form. RNA arises in cells as an intermediate when genes are translated into proteins. RNA genomes of viruses can be encoded in two different directions: Either the genes are stored in the 5'->3' direction (positive or + polarity), analogous to the direction in which genes are represented in mRNA in cells, or the genes are stored in the opposite direction (negative or - polarity). The taxonomy of viruses is similar to that of cellular organisms: :Order (biology) (''-virales'') ::Family (biology) (''-viridae'') :::Subfamily (''-virinae'') ::::Genus (biology) (''-virus'') :::::Species However, the code of nomenclature regulated by the International Committee on Taxonomy of Viruses differs from the others on several points. Most notably, names of orders and families are italicized, and species names are not binomial - instead, they generally take the form of ''[Disease] Virus''. The recognition of orders is very recent and has been deliberately slow; to date, only three have been named, and most families remain unplaced. Approximately 80 families and 4000 species of virus are known. ==Classification by genome type== ===DNA viruses=== ====Group I - dsDNA viruses (double stranded DNA)==== *Order ''Caudovirales'' (tailed bacteriophages). **Family ''Myoviridae'' - e.g. ''Enterobacteria phage T4'' **Family ''Podoviridae'' **Family ''Siphoviridae'' - e.g. ''Enterobacteria phage lambda'' *Unassigned **Family ''Ascovirus'' **Family ''Adenoviridae'' **Family ''Asfivirus'' **Family ''Baculoviridae'' **Family ''Corticovirus'' **Family ''Fusellovirus'' **Family ''Guttavirus'' **Family ''Herpesviridae'' - e.g. Human herpseviruses **Family ''Iridoviridae'' **Family ''Lipothrixviridae'' **Family ''Whispovirus'' **Family ''Papillomavirus'' **Family ''Phycodnaviridae'' **Family ''Plasmavirus'' **Family ''Polyomaviridae'' - e.g. ''SV40'' **Family ''Poxviridae'' - e.g. ''Cowpox virus'', ''Variola virus'' (smallpox) **Family ''Rudivirus'' **Family ''Tectivirus'' **Unassigned genera *** ''Mimivirus''; type species: ''Acanthamoeba polyphaga mimivirus'' ====Group II - ssDNA viruses (single stranded DNA)==== *Unassigned bacteriophages **Family ''Inoviridae'' **Family ''Microviridae'' *Unassigned viruses **Family ''Geminiviridae'' **Family ''Circoviridae'' **Family ''Nanoviridae'' **Family ''Parvoviridae'' - e.g. ''Parvovirus B19'' (most depend on coinfection with adenoviruses for growth) **Unassigned genera *** ''Anellovirus''; type species: ''Torque teno virus'' ===RNA viruses=== ====Group III - dsRNA viruses (double stranded RNA)==== *Family ''Birnaviridae'' *Family ''Chrysoviridae'' *Family ''Cystoviridae'' *Family ''Hypoviridae'' *Family ''Partitiviridae'' *Family ''Reoviridae'' - e.g ''Rotavirus'' *Family ''Totiviridae'' *Unassigned genera ** ''Endornavirus''; type species: ''Vicia faba endornavirus'' ====Group IV - Positive-sense ssRNA virus (positive single stranded RNA or mRNA like)==== *Order ''Nidovirales'' ("Nested" Viruses) **Family ''Arterivirus'' **Family ''Coronaviridae'' - e.g. ''Coronavirus'' **Family ''Okavirus'' *Unassigned **Family ''Astroviridae'' **Family ''Barnavirus'' **Family ''Bromoviridae'' **Family ''Caliciviridae'' - e.g. ''Norwalk virus'' **Family ''Closteroviridae'' **Family ''Comoviridae'' **Family ''Dicistroviridae'' **Family ''Flaviviridae'' - e.g. ''Yellow fever virus'', ''West Nile virus'', ''Hepatitis C virus'' **Family ''Flexiviridae'' **Family ''Hepeviridae'' - e.g. ''Hepatitis E virus'' **Family ''Leviviridae'' **Family ''Luteoviridae'' **Family ''Marnavirus'' **Family ''Narnaviridae'' - naked RNA viruses **Family ''Nodaviridae'' **Family ''Picornaviridae'' - e.g. ''Poliovirus'', ''Rhinovirus'', ''Hepatitis A virus'' **Family ''Potyviridae'' **Family ''Sequiviridae'' **Family ''Tetraviridae'' **Family ''Togaviridae'' - e.g. ''Rubella virus'' **Family ''Tombusviridae'' **Family ''Tymoviridae'' **Unassigned genera ***Genus ''Benyvirus''; type species: ''Beet necrotic yellow vein virus'' ***Genus ''Cheravirus''; type species: ''Cherry rasp leaf virus'' ***Genus ''Furovirus''; type species: ''Soil-borne wheat mosaic virus'' ***Genus ''Hordeivirus''; type species: ''Barley stripe mosaic virus'' ***Genus ''Idaeovirus''; type species: ''Raspberry bushy dwarf virus'' ***Genus ''Machlomovirus''; type species: ''Maize chlorotic mottle virus'' ***Genus ''Ourmiavirus''; type species: ''Ourmia melon virus'' ***Genus ''Pecluvirus''; type species: ''Peanut clump virus'' ***Genus ''Pomovirus''; type species: ''Potato mop-top virus'' ***Genus ''Sadwavirus''; type species; ''Satsuma dwarf virus'' ***Genus ''Sobemovirus''; type species: ''Southern bean mosaic virus'' ***Genus ''Tobamovirus''; type species: ''Tobacco mosaic virus'' ***Genus ''Tobravirus''; type species: ''Tobacco rattle virus'' ***Genus ''Umbravirus''; type species: ''Carrot mottle virus'' ====Group V - Negative-sense ssRNA virus (negative single-stranded RNA)==== *Order ''Mononegavirales'' (non-segmented negative stranded viruses) **Family ''Borna disease'' - ''Borna disease virus'' **Family ''Filoviridae'' - Ebola viruses, ''Marburg virus'' **Family ''Paramyxoviridae'' - e.g. ''Measles virus'', ''Mumps virus'' **Family ''Rhabdoviridae'' - e.g. ''Rabies virus'' *Segmented negative stranded viruses **Family ''Arenaviridae'' **Family ''Bunyaviridae'' - e.g. ''Hantavirus'' **Family ''Orthomyxoviridae'' - Influenza viruses **Unassigned genera: ***Genus ''Deltavirus''; type species: ''Hepatitis delta virus'' ***Genus ''Ophiovirus''; type species: ''Citrus psorosis virus'' ***Genus ''Tenuivirus''; type species: ''Rice stripe virus'' ***Genus ''Varicosavirus''; type species: ''Lettuce big-vein associated virus'' ===DNA and RNA Reverse Transcribing viruses=== ====Group VI - ssRNA-RT viruses (single stranded RNA)==== *Family ''Metaviridae'' *Family ''Pseudoviridae'' *Family ''Retrovirus'' - Retroviruses, e.g. ''HIV'' ====Group VII - dsDNA-RT viruses (double stranded DNA)==== *Family ''Hepadnaviridae'' - e.g. ''Hepatitis B virus'' *Family ''Caulimoviridae'' - e.g. ''Cauliflower mosaic virus'' ==Subviral agents== The following agents are smaller than viruses but have some of their properties. ===Viroids=== *Family ''Pospiviroidae'' **Genus ''Pospiviroid''; type species: ''Potato spindle tuber viroid'' **Genus ''Hostuviroid''; type species: ''Hop stunt viroid'' **Genus ''Cocadviroid''; type species: ''Coconut cadang-cadang viroid'' **Genus ''Apscaviroid''; type species: ''Apple scar skin viroid'' **Genus ''Coleviroid''; type species: ''Coleus blumei viroid 1'' *Family ''Avsunviroidae'' **Genus ''Avsunviroid''; type species: ''Avocado sunblotch viroid'' **Genus ''Pelamoviroid''; type species: ''Peach latent mosaic viroid'' ===Satellite (biology)s=== *Satellite viruses **Single-stranded RNA satellite viruses ***Sugroup 1: ''Chronic bee-paralysis satellite virus'' ***Subgroup 2: ''Tobacco necrosis satellite virus'' *Satellite nucleic acids **Single-stranded satellite DNAs **Double-stranded satellite RNAs **Single-stranded satellite RNAs ***Subgroup 1: Large satellite RNAs ***Subgroup 2: Small linear satellite RNAs ***Subgroup 3: Circular satellite RNAs ===Prions=== *Fungal prions *Mamalian prions ==Other resources== ===External links=== *[http://www.ncbi.nlm.nih.gov/ICTVdb/Ictv/index.htm ICTV Index of Viruses] *[http://www-micro.msb.le.ac.uk/3035/VirusGroups.html Up-to-date 8th ICTV Index classification] ===See also=== *Taxonomy *Scientific classification *Binomial nomenclature *Trinomial nomenclature *WikiSpecies:Virus Virus Virology Scientific classification
What does the word "but" refer to in the class VI description? --rmhermen : Shouldn't be there. Fixed now, I think, will also fix in Virus (Biology). User:Someone else ---- What about Hantaviruses? -- User:Emperorbma 21:17, 31 Dec 2003 (UTC) :Nevermind, they are up where they should be now... -- User:Emperorbma 21:57, 31 Dec 2003 (UTC) == Orf, a parapox virus == This stub article is orphaned: orf - is there a home for it? User:Ancheta Wis 00:13, 20 Mar 2004 (UTC) == Potexvirus and Pomovirus genera misplaced == Wilke reverted a ViralQuest removal of Potexvirus from the dsDNA viruses, Family Polyomaviridae section. I am reversing that edit (and removing Genus Pomovirus) because these two genera are postive-strand ssRNA virus groups (not dsDNA). Genus Potexvirus is a member of the Family Flexiviridae and the Genus Pomovirus is an unassigned (+)ssRNA virus member. See said listings already in previous Virus Classification edits. See also: ICTV Genus Potexvirus [http://www.ncbi.nlm.nih.gov/ICTVdb/Ictv/fs_potex.htm] ICTV Genus Pomovirus [http://www.ncbi.nlm.nih.gov/ICTVdb/Ictv/fs_pomov.htm] ICTV Family Polyomaviridae [http://www.ncbi.nlm.nih.gov/ICTVdb/Ictv/fs_polyo.htm] and ICTV Taxonomy Browser (Viruses) [http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?name=Viruses] Thanks for allowing this edit. --User:ViralQuest 23:40, Nov 26, 2004 (UTC) == Virus taxonomy == {| width="100%" cellspacing=0 border=1 cellpadding=4 |- | bgcolor="lavender" | ''see Virus classification'' |- |} * Shouldn't Viruses appear at the WikiSpecies wiki? *: http://sn2000.taxonomy.nl/Main/Classification/..%5CDetails%5C71304.htm *: http://www.laureestan.unige.it/progr/botanica.html *: http://sn2000.taxonomy.nl/Main/Classification/..%5CDetails%5C71303.htm *: http://wiki.tatet.ru/pt/Biologia.html *: http://www.bioproject.info/particular_biology/superkingdom_viruses.html *: User:132.205.15.43 04:57, 16 Dec 2004 (UTC) Possibly, although that's something for ''them'' to worry about. However, viruses are an odd case because they don't appear in the normal classification of living things. Kingdom Virus is rare, and Aphanobionta and Acyota are very obscure. More subtly, though, they ''shouldn't'' appear in the normal classification of living things because they don't form a phylogenetic hierarchy, and probably don't even have a single origin. So I'm not sure what we should do with them, but I'd say casually giving them a kingdom, domain, or empire isn't the solution. User:Josh Grosse * Though we wouldn't casually be giving them a kingdom/domain/empire. People already do that. A rankless taxobox would work as well, as anything above order is controversial, and they are all viruses, and the taxoboxes are nice to have on the virus pages. User:132.205.15.43 05:38, 16 Dec 2004 (UTC) A few people do that, but it is not very common, and I have not seen it done alongside three domains. As for the taxoboxes, I've moved my suggestion to Wikipedia talk:WikiProject Tree of Life. User:Josh Grosse * WikiSpecies seems to have a start: WikiSpecies:Virus User:132.205.15.43 04:28, 24 Dec 2004 (UTC) === Taxoboxes courtesy of WikiProject:Tree of Life === ''Genus 1''
''Genus 2''
== WikiProject? == Is there a WikiProject for viruses? User:132.205.15.43 04:43, 24 Dec 2004 (UTC)
See other meanings of words starting from letter:
Words begining with Virus_classification:
Virus_classification
Virus_classification
Virus classification
Virus (biology) can be classified in several ways, such as by their geometry, by whether they have envelopes, by the identity of the host organism they can infect, by mode of transmission, or by the type of disease they cause. The most useful classification is probably by the type of nucleic acid the virus contains and its mode of expression. This classification was proposed by Nobel prize winner David Baltimore. It should be noted that none of these classifications are expected to be phylogenetic, as viruses may not share a common origin. ==Overview== The various forms of viruses arise because one of the two strands of DNA in which all cellular life forms store their genetic information is redundant, so that viruses can have either single-stranded or double-stranded genomes. Furthermore, some viruses store their genome in RNA rather than in DNA form. RNA arises in cells as an intermediate when genes are translated into proteins. RNA genomes of viruses can be encoded in two different directions: Either the genes are stored in the 5'->3' direction (positive or + polarity), analogous to the direction in which genes are represented in mRNA in cells, or the genes are stored in the opposite direction (negative or - polarity). The taxonomy of viruses is similar to that of cellular organisms: :Order (biology) (''-virales'') ::Family (biology) (''-viridae'') :::Subfamily (''-virinae'') ::::Genus (biology) (''-virus'') :::::Species However, the code of nomenclature regulated by the International Committee on Taxonomy of Viruses differs from the others on several points. Most notably, names of orders and families are italicized, and species names are not binomial - instead, they generally take the form of ''[Disease] Virus''. The recognition of orders is very recent and has been deliberately slow; to date, only three have been named, and most families remain unplaced. Approximately 80 families and 4000 species of virus are known. ==Classification by genome type== ===DNA viruses=== ====Group I - dsDNA viruses (double stranded DNA)==== *Order ''Caudovirales'' (tailed bacteriophages). **Family ''Myoviridae'' - e.g. ''Enterobacteria phage T4'' **Family ''Podoviridae'' **Family ''Siphoviridae'' - e.g. ''Enterobacteria phage lambda'' *Unassigned **Family ''Ascovirus'' **Family ''Adenoviridae'' **Family ''Asfivirus'' **Family ''Baculoviridae'' **Family ''Corticovirus'' **Family ''Fusellovirus'' **Family ''Guttavirus'' **Family ''Herpesviridae'' - e.g. Human herpseviruses **Family ''Iridoviridae'' **Family ''Lipothrixviridae'' **Family ''Whispovirus'' **Family ''Papillomavirus'' **Family ''Phycodnaviridae'' **Family ''Plasmavirus'' **Family ''Polyomaviridae'' - e.g. ''SV40'' **Family ''Poxviridae'' - e.g. ''Cowpox virus'', ''Variola virus'' (smallpox) **Family ''Rudivirus'' **Family ''Tectivirus'' **Unassigned genera *** ''Mimivirus''; type species: ''Acanthamoeba polyphaga mimivirus'' ====Group II - ssDNA viruses (single stranded DNA)==== *Unassigned bacteriophages **Family ''Inoviridae'' **Family ''Microviridae'' *Unassigned viruses **Family ''Geminiviridae'' **Family ''Circoviridae'' **Family ''Nanoviridae'' **Family ''Parvoviridae'' - e.g. ''Parvovirus B19'' (most depend on coinfection with adenoviruses for growth) **Unassigned genera *** ''Anellovirus''; type species: ''Torque teno virus'' ===RNA viruses=== ====Group III - dsRNA viruses (double stranded RNA)==== *Family ''Birnaviridae'' *Family ''Chrysoviridae'' *Family ''Cystoviridae'' *Family ''Hypoviridae'' *Family ''Partitiviridae'' *Family ''Reoviridae'' - e.g ''Rotavirus'' *Family ''Totiviridae'' *Unassigned genera ** ''Endornavirus''; type species: ''Vicia faba endornavirus'' ====Group IV - Positive-sense ssRNA virus (positive single stranded RNA or mRNA like)==== *Order ''Nidovirales'' ("Nested" Viruses) **Family ''Arterivirus'' **Family ''Coronaviridae'' - e.g. ''Coronavirus'' **Family ''Okavirus'' *Unassigned **Family ''Astroviridae'' **Family ''Barnavirus'' **Family ''Bromoviridae'' **Family ''Caliciviridae'' - e.g. ''Norwalk virus'' **Family ''Closteroviridae'' **Family ''Comoviridae'' **Family ''Dicistroviridae'' **Family ''Flaviviridae'' - e.g. ''Yellow fever virus'', ''West Nile virus'', ''Hepatitis C virus'' **Family ''Flexiviridae'' **Family ''Hepeviridae'' - e.g. ''Hepatitis E virus'' **Family ''Leviviridae'' **Family ''Luteoviridae'' **Family ''Marnavirus'' **Family ''Narnaviridae'' - naked RNA viruses **Family ''Nodaviridae'' **Family ''Picornaviridae'' - e.g. ''Poliovirus'', ''Rhinovirus'', ''Hepatitis A virus'' **Family ''Potyviridae'' **Family ''Sequiviridae'' **Family ''Tetraviridae'' **Family ''Togaviridae'' - e.g. ''Rubella virus'' **Family ''Tombusviridae'' **Family ''Tymoviridae'' **Unassigned genera ***Genus ''Benyvirus''; type species: ''Beet necrotic yellow vein virus'' ***Genus ''Cheravirus''; type species: ''Cherry rasp leaf virus'' ***Genus ''Furovirus''; type species: ''Soil-borne wheat mosaic virus'' ***Genus ''Hordeivirus''; type species: ''Barley stripe mosaic virus'' ***Genus ''Idaeovirus''; type species: ''Raspberry bushy dwarf virus'' ***Genus ''Machlomovirus''; type species: ''Maize chlorotic mottle virus'' ***Genus ''Ourmiavirus''; type species: ''Ourmia melon virus'' ***Genus ''Pecluvirus''; type species: ''Peanut clump virus'' ***Genus ''Pomovirus''; type species: ''Potato mop-top virus'' ***Genus ''Sadwavirus''; type species; ''Satsuma dwarf virus'' ***Genus ''Sobemovirus''; type species: ''Southern bean mosaic virus'' ***Genus ''Tobamovirus''; type species: ''Tobacco mosaic virus'' ***Genus ''Tobravirus''; type species: ''Tobacco rattle virus'' ***Genus ''Umbravirus''; type species: ''Carrot mottle virus'' ====Group V - Negative-sense ssRNA virus (negative single-stranded RNA)==== *Order ''Mononegavirales'' (non-segmented negative stranded viruses) **Family ''Borna disease'' - ''Borna disease virus'' **Family ''Filoviridae'' - Ebola viruses, ''Marburg virus'' **Family ''Paramyxoviridae'' - e.g. ''Measles virus'', ''Mumps virus'' **Family ''Rhabdoviridae'' - e.g. ''Rabies virus'' *Segmented negative stranded viruses **Family ''Arenaviridae'' **Family ''Bunyaviridae'' - e.g. ''Hantavirus'' **Family ''Orthomyxoviridae'' - Influenza viruses **Unassigned genera: ***Genus ''Deltavirus''; type species: ''Hepatitis delta virus'' ***Genus ''Ophiovirus''; type species: ''Citrus psorosis virus'' ***Genus ''Tenuivirus''; type species: ''Rice stripe virus'' ***Genus ''Varicosavirus''; type species: ''Lettuce big-vein associated virus'' ===DNA and RNA Reverse Transcribing viruses=== ====Group VI - ssRNA-RT viruses (single stranded RNA)==== *Family ''Metaviridae'' *Family ''Pseudoviridae'' *Family ''Retrovirus'' - Retroviruses, e.g. ''HIV'' ====Group VII - dsDNA-RT viruses (double stranded DNA)==== *Family ''Hepadnaviridae'' - e.g. ''Hepatitis B virus'' *Family ''Caulimoviridae'' - e.g. ''Cauliflower mosaic virus'' ==Subviral agents== The following agents are smaller than viruses but have some of their properties. ===Viroids=== *Family ''Pospiviroidae'' **Genus ''Pospiviroid''; type species: ''Potato spindle tuber viroid'' **Genus ''Hostuviroid''; type species: ''Hop stunt viroid'' **Genus ''Cocadviroid''; type species: ''Coconut cadang-cadang viroid'' **Genus ''Apscaviroid''; type species: ''Apple scar skin viroid'' **Genus ''Coleviroid''; type species: ''Coleus blumei viroid 1'' *Family ''Avsunviroidae'' **Genus ''Avsunviroid''; type species: ''Avocado sunblotch viroid'' **Genus ''Pelamoviroid''; type species: ''Peach latent mosaic viroid'' ===Satellite (biology)s=== *Satellite viruses **Single-stranded RNA satellite viruses ***Sugroup 1: ''Chronic bee-paralysis satellite virus'' ***Subgroup 2: ''Tobacco necrosis satellite virus'' *Satellite nucleic acids **Single-stranded satellite DNAs **Double-stranded satellite RNAs **Single-stranded satellite RNAs ***Subgroup 1: Large satellite RNAs ***Subgroup 2: Small linear satellite RNAs ***Subgroup 3: Circular satellite RNAs ===Prions=== *Fungal prions *Mamalian prions ==Other resources== ===External links=== *[http://www.ncbi.nlm.nih.gov/ICTVdb/Ictv/index.htm ICTV Index of Viruses] *[http://www-micro.msb.le.ac.uk/3035/VirusGroups.html Up-to-date 8th ICTV Index classification] ===See also=== *Taxonomy *Scientific classification *Binomial nomenclature *Trinomial nomenclature *WikiSpecies:Virus Virus Virology Scientific classification
Virus classification
What does the word "but" refer to in the class VI description? --rmhermen : Shouldn't be there. Fixed now, I think, will also fix in Virus (Biology). User:Someone else ---- What about Hantaviruses? -- User:Emperorbma 21:17, 31 Dec 2003 (UTC) :Nevermind, they are up where they should be now... -- User:Emperorbma 21:57, 31 Dec 2003 (UTC) == Orf, a parapox virus == This stub article is orphaned: orf - is there a home for it? User:Ancheta Wis 00:13, 20 Mar 2004 (UTC) == Potexvirus and Pomovirus genera misplaced == Wilke reverted a ViralQuest removal of Potexvirus from the dsDNA viruses, Family Polyomaviridae section. I am reversing that edit (and removing Genus Pomovirus) because these two genera are postive-strand ssRNA virus groups (not dsDNA). Genus Potexvirus is a member of the Family Flexiviridae and the Genus Pomovirus is an unassigned (+)ssRNA virus member. See said listings already in previous Virus Classification edits. See also: ICTV Genus Potexvirus [http://www.ncbi.nlm.nih.gov/ICTVdb/Ictv/fs_potex.htm] ICTV Genus Pomovirus [http://www.ncbi.nlm.nih.gov/ICTVdb/Ictv/fs_pomov.htm] ICTV Family Polyomaviridae [http://www.ncbi.nlm.nih.gov/ICTVdb/Ictv/fs_polyo.htm] and ICTV Taxonomy Browser (Viruses) [http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?name=Viruses] Thanks for allowing this edit. --User:ViralQuest 23:40, Nov 26, 2004 (UTC) == Virus taxonomy == {| width="100%" cellspacing=0 border=1 cellpadding=4 |- | bgcolor="lavender" | ''see Virus classification'' |- |} * Shouldn't Viruses appear at the WikiSpecies wiki? *: http://sn2000.taxonomy.nl/Main/Classification/..%5CDetails%5C71304.htm *: http://www.laureestan.unige.it/progr/botanica.html *: http://sn2000.taxonomy.nl/Main/Classification/..%5CDetails%5C71303.htm *: http://wiki.tatet.ru/pt/Biologia.html *: http://www.bioproject.info/particular_biology/superkingdom_viruses.html *: User:132.205.15.43 04:57, 16 Dec 2004 (UTC) Possibly, although that's something for ''them'' to worry about. However, viruses are an odd case because they don't appear in the normal classification of living things. Kingdom Virus is rare, and Aphanobionta and Acyota are very obscure. More subtly, though, they ''shouldn't'' appear in the normal classification of living things because they don't form a phylogenetic hierarchy, and probably don't even have a single origin. So I'm not sure what we should do with them, but I'd say casually giving them a kingdom, domain, or empire isn't the solution. User:Josh Grosse * Though we wouldn't casually be giving them a kingdom/domain/empire. People already do that. A rankless taxobox would work as well, as anything above order is controversial, and they are all viruses, and the taxoboxes are nice to have on the virus pages. User:132.205.15.43 05:38, 16 Dec 2004 (UTC) A few people do that, but it is not very common, and I have not seen it done alongside three domains. As for the taxoboxes, I've moved my suggestion to Wikipedia talk:WikiProject Tree of Life. User:Josh Grosse * WikiSpecies seems to have a start: WikiSpecies:Virus User:132.205.15.43 04:28, 24 Dec 2004 (UTC) === Taxoboxes courtesy of WikiProject:Tree of Life === ''Genus 1''
''Genus 2''
== WikiProject? == Is there a WikiProject for viruses? User:132.205.15.43 04:43, 24 Dec 2004 (UTC)
See other meanings of words starting from letter:
V
Words begining with Virus_classification:
Virus_classification
Virus_classification
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YouTube.com videos better site than Turbo Tax 2007
