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WoRMS Statistics

Number of records in WoRMS.
  • All taxa: number of marine [M] & non-fossil [nF] scientific names at all ranks (sum of species, genera, families,..., accepted and synonyms).
  • All species: number of marine [M] & non-fossil [nF] species (sum of accepted and synonyms) within the specific rank.
  • Acc. species: number of accepted marine [M] & non-fossil [nF] species within the specific rank.
  • Acc. species: number of accepted non-marine [nM] & non-fossil [nF] species within the specific rank.
  • Checked taxa: number of marine [M] & non-fossil [nF] scientific names (%) that have been checked by a Taxonomic Editor.
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View stats on lifewatch


 all taxa
[M, nF]
   all species
[M, nF]
   acc. species
[M, nF]
   acc. species
[nM, nF]
   checked taxa
[M, nF]
Biota556,277448,593243,16757,543522,786 (94 %)
  Kingdom Animalia457,719377,970195,99735,669444,433 (97 %)
    Phylum Acanthocephala7295794771729 (100 %)
    Phylum Annelida26,60222,48712,9205326,142 (98 %)
    Phylum Arthropoda102,73084,08556,35426,217100,843 (98 %)
    Phylum Brachiopoda91766541900 (0 %)
    Phylum Bryozoa9,1147,4296,186738,996 (99 %)
    Phylum Cephalorhyncha4854122360445 (92 %)
    Phylum Chaetognatha3552911310355 (100 %)
    Phylum Chordata70,83458,52222,29856070,009 (99 %)
    Phylum Cnidaria26,10421,82911,4981225,308 (97 %)
    Phylum Ctenophora4252771970421 (99 %)
    Phylum Cycliophora62206 (100 %)
    Phylum Dicyemida1511341220144 (95 %)
    Phylum Echinodermata21,44817,2637,294321,441 (100 %)
    Phylum Entoprocta2442211832244 (100 %)
    Phylum Gastrotricha760646497329759 (100 %)
    Phylum Gnathostomulida1551131010155 (100 %)
    Phylum Hemichordata2011561300197 (98 %)
    Phylum Mollusca133,035111,38846,7943,417126,004 (95 %)
    Phylum Nematoda10,2848,5966,5108149,502 (92 %)
    Phylum Nematomorpha125507 (58 %)
    Phylum Nemertea3,3142,7111,37643,142 (95 %)
    Phylum Orthonectida514025042 (82 %)
    Phylum Phoronida57491100 (0 %)
    Phylum Placozoa63106 (100 %)
    Phylum Platyhelminthes24,66619,40012,6242,93524,611 (100 %)
    Phylum Porifera21,60418,1748,59822421,603 (100 %)
    Phylum Rotifera37422920183368 (98 %)
    Phylum Sipuncula1,6501,28314701,635 (99 %)
    Phylum Tardigrada436273204940378 (87 %)
    Phylum Xenacoelomorpha9037074552900 (100 %)
  Kingdom Plantae31,18622,14312,13810,86626,161 (84 %)
    Phylum Anthocerotophyta100000 (0 %)
    Phylum Bryophyta9011111111 (12 %)
    Phylum Charophyta8213963225,796530 (65 %)
    Phylum Chlorophyta8,6515,2743,2514,3486,707 (78 %)
    Phylum Glaucophyta15441415 (100 %)
    Phylum Marchantiophyta240011 (4 %)
    Phylum Plantae incertae sedis345865918215 (62 %)
    Phylum Pteridophyta30003 (100 %)
    Phylum Rhodophyta20,15615,9398,17937318,433 (91 %)
    Phylum Tracheophyta1,048433312305230 (22 %)
  Kingdom Fungi2,9851,7191,357652,962 (99 %)
    Phylum Ascomycota2,1481,287972232,136 (99 %)
    Phylum Basidiomycota205605826203 (99 %)
    Phylum Chytridiomycota803931279 (99 %)
    Phylum Microsporidia45030526913450 (100 %)
    Phylum Zygomycota391313039 (100 %)
  Kingdom Protozoa3,4552,3702,2011,1551,782 (52 %)
    Phylum Amoebozoa40913611710184 (45 %)
    Phylum Apusozoa1542015 (100 %)
    Phylum Choanozoa34923919838282 (81 %)
    Phylum Euglenozoa1,7751,6031,528701937 (53 %)
    Phylum Loukozoa1122011 (100 %)
    Phylum Metamonada7234311030 (42 %)
    Phylum Percolozoa522725137 (71 %)
    Phylum Picozoa61102 (33 %)
  Kingdom Bacteria4,9672,6152,1423,4441,916 (39 %)
    Phylum Acidobacteria91100 (0 %)
    Phylum Actinobacteria267747410 (0 %)
    Phylum Aquificae28151500 (0 %)
    Phylum Bacteria incertae sedis4415153510 (23 %)
    Phylum Bacteroidetes42623623600 (0 %)
    Phylum Caldiserica51100 (0 %)
    Phylum Chlamydiae80000 (0 %)
    Phylum Chlorobi179921 (6 %)
    Phylum Chloroflexi374400 (0 %)
    Phylum Cyanobacteria2,0471,2548093,3991,899 (93 %)
    Phylum Deferribacteres125500 (0 %)
    Phylum Deinococcus-Thermus174400 (0 %)
    Phylum Elusimicrobia40000 (0 %)
    Phylum Fibrobacteres40000 (0 %)
    Phylum Firmicutes297999920 (0 %)
    Phylum Fusobacteria26151500 (0 %)
    Phylum Gemmatimonadetes40000 (0 %)
    Phylum Lentisphaerae41100 (0 %)
    Phylum Nitrospirae71100 (0 %)
    Phylum Planctomycetes185500 (0 %)
    Phylum Proteobacteria1,54182980256 (0 %)
    Phylum Spirochaetes101100 (0 %)
    Phylum Synergistetes123300 (0 %)
    Phylum Tenericutes193200 (0 %)
    Phylum Thermodesulfobacteria72200 (0 %)
    Phylum Thermotogae23131300 (0 %)
    Phylum Verrucomicrobia46252500 (0 %)
  Kingdom Chromista54,99541,53629,0926,32345,411 (83 %)
    Phylum Bigyra1841018239163 (89 %)
    Phylum Cercozoa5002812346445 (89 %)
    Phylum Ciliophora4,9123,7952,6683383,734 (76 %)
    Phylum Cryptophyta32524318462250 (77 %)
    Phylum Foraminifera17,10513,3029,001117,105 (100 %)
    Phylum Haptophyta91754036814814 (89 %)
    Phylum Heliozoa24101009 (38 %)
    Phylum Myzozoa6,2654,8343,2333194,677 (75 %)
    Phylum Ochrophyta23,60017,74512,8045,54217,376 (74 %)
    Phylum Oomycota12964461124 (96 %)
    Phylum Radiozoa9786064480674 (69 %)
  Kingdom Archaea23411811810 (0 %)
    Phylum Crenarchaeota48191900 (0 %)
    Phylum Euryarchaeota173979710 (0 %)
    Phylum Thaumarchaeota92200 (0 %)
  Kingdom Viruses68611011020111 (16 %)
  Kingdom Biota incertae sedis37101006 (16 %)



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Discovery rate for 

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Authors describing most species during last decade for 

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Citations (Google scholar)

Citations for "World Register of Marine Species": 4,132

[view publications]