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The statistics refer to the public database after the last refresh (2026-01-12). Note that the internal database can be significantly larger at a given time point because as yet not all entries underwent the final quality check. More information on type-strain deposits in Biological Resource Centres (BRCs) is found on the culture collection page. Information on the International Code of Nomenclature of Prokaryotes (ICNP) is provided on the nomenclature page. Validly published names of Cyanobacteria are mostly validly published under International Code of Nomenclature for algae, fungi, and plants (ICNafp).
For the approximate number of taxonomic proposals per country see the page on corresponding authors. For the number of species per genus, see the page on the largest genera. There is also a page on the number of taxon names per year.
Category species: 27099
Category genus: 4444
Category family: 920
Category subspecies: 841
Category order: 384
Category class: 186
Category phylum: 57
Category suborder: 24
Category tribe: 24
Category subgenus: 10
Category kingdom: 8
Category subclass: 7
Category division: 2
Category domain: 2
Category species: 21882
Category genus: 3933
Category family: 657
Category subspecies: 559
Category order: 254
Category class: 125
Category phylum: 46
Category tribe: 24
Category suborder: 23
Category subgenus: 10
Category kingdom: 8
Category subclass: 7
Category division: 2
Category domain: 2
Category species: 2979
Category genus: 1241
Category family: 306
Category order: 227
Category phylum: 212
Category class: 159
Category subspecies: 16
Category superphylum: 2
Category subclass: 1
Category suborder: 1
Category species: 6960
Category genus: 920
Category subspecies: 279
Category family: 173
Category phylum: 142
Category class: 84
Category variety: 82
Category order: 73
Category form: 46
Category subphylum: 27
Category kingdom: 18
Category subclass: 17
Category division: 15
Category uncategorized: 14
Category superphylum: 13
Category domain: 10
Category infrakingdom: 10
Category infraphylum: 9
Category subdivision: 9
Category subgenus: 9
Category subkingdom: 9
Category superclass: 9
Category suborder: 6
Category section: 4
Category subdomain: 3
Category superdivision: 3
Category series: 2
Category superdomain: 1
Category superkingdom: 1
Category species: 7204
Category variety: 1026
Category genus: 815
Category form: 529
Category family: 169
Category order: 50
Category subgenus: 21
Category class: 17
Category subfamily: 12
Category section: 11
Category tribe: 5
Category subspecies: 4
Category phylum: 3
Category subclass: 2
Category kingdom: 1
Category subdivision: 1
Category subsection: 1
Pseudomonadota: 8151
Actinomycetota: 4758
Bacillota: 3784
Bacteroidota: 2828
Methanobacteriota: 689
Mycoplasmatota: 229
Spirochaetota: 207
Deinococcota: 139
Planctomycetota: 133
Thermoproteota: 83
Acidobacteriota: 81
Chloroflexota: 60
Thermotogota: 53
Fusobacteriota: 50
Aquificota: 31
Synergistota: 31
Balneolota: 25
Chlorobiota: 22
Chlamydiota: 20
Rhodothermota: 19
Deferribacterota: 14
Nitrospirota: 12
Microcaldota: 1
Nanobdellota: 1
Nitrospinota: 1
Words: 104565
Grammar specifiers: 104414
Explanations: 101533
Syllabifications: 55450
Explanations, nonredundant: 39823
Words, nonredundant: 32839
Syllabifications, nonredundant: 26941
Grammar specifiers, nonredundant: 298
Taxonomic notes: 160579
Type-strain deposits: 107516
Type-strain deposits in BRCs: 82015
Type-strain deposits in active BRCs: 75534
Type-strain deposits in linked BRCs: 75285
Publications: 31372
16S rRNA gene accession numbers: 25597
Emendations: 5360
Last covered IJSEM issue: 75/12 (December 2025), number of IJSEM lists: 1
LPSN (collected by new production system): 37700
LPSN (imported from pre-DSMZ version of LPSN): 16763
PNU (Prokaryotic Nomenclature Up-to-date): 5504