Between brackets is the number of accepted species
1 Click on "-" to collapse/hide all child taxa
2 Shows the number of accepted species within the taxon
3 The last expanded taxon is highlighted
4 Click on "+" to expand/show all child taxa
5 Click to see the taxon details page
- Biota
- Kingdom Animalia
- Phylum Acanthocephala
- Phylum Agmata †
- Phylum Animalia (awaiting allocation)
- Phylum Animalia incertae sedis
- Phylum Annelida
- Class Annelida (awaiting allocation)
- Class Clitellata
- Class Machaeridia
- Class Myzostomaria
- Class Polychaeta
- Subclass Echiura
- Subclass Errantia
- Order Aciculata
- Order Amphinomorpha
- Order Athecanephria
- Order Canalipalpata
- Order Capitellida
- Family Arenicolidae Johnston, 1835
- Genus Abarenicola Wells, 1959
- Genus Arbarenicola accepted as Abarenicola Wells, 1959
- Genus Archarenicola
- Genus Arencola Gervais, 1840 accepted as Arenicola Lamarck, 1801
- Genus Arenicola Lamarck, 1801
- Species Arenicola abildgaardti Castelnau, 1842 accepted as Arenicola marina (Linnaeus, 1758)
- Species Arenicola antillensis Lütken, 1864
- Species Arenicola assimilis Ehlers, 1897
- Species Arenicola bobretzkii Czerniavsky, 1881 accepted as Arenicolides branchialis (Audouin & Milne Edwards, 1833)
- Species Arenicola boeckii Rathke, 1843 accepted as Arenicolides ecaudata (Johnston, 1835)
- Species Arenicola bombayensis Kewalramani, Wagh & Ranade, 1959
- Species Arenicola bombayensis Kewalramani, Wagh & Ramade, 1960
- Species Arenicola branchialis Audouin & Milne Edwards, 1833 accepted as Arenicolides branchialis (Audouin & Milne Edwards, 1833)
- Species Arenicola brasiliensis Nonato, 1958
- Species Arenicola bucci Hanna, 1898 accepted as Arenicolides ecaudatus (Mesnil, 1897)
- Species Arenicola carbonaria Leach, 1816 accepted as Arenicola marina (Linnaeus, 1758)
- Species Arenicola caroledna Wells, 1961
- Species Arenicola claparedi Levinsen, 1884 accepted as Abarenicola claparedi (Levinsen, 1884)
- Species Arenicola clavata Ranzani, 1817 accepted as Arenicola marina (Linnaeus, 1758)
- Species Arenicola cristata Stimpson, 1856
- Species Arenicola cyanea Czerniavsky, 1881 accepted as Arenicolides branchialis (Audouin & Milne Edwards, 1833)
- Species Arenicola defodiens Cadman & Nelson-Smith, 1993
- Species Arenicola dioscurica Czerniavsky, 1881 accepted as Arenicolides branchialis (Audouin & Milne Edwards, 1833)
- Species Arenicola dorvilliana Leach in Johnston, 1865 accepted as Arenicolides branchialis (Audouin & Milne Edwards, 1833)
- Species Arenicola ecaudata Johnston, 1835 accepted as Arenicolides ecaudata (Johnston, 1835)
- Species Arenicola glacialis Murdoch, 1885
- Species Arenicola glasselli Berkeley & Berkeley, 1939
- Species Arenicola grubii Claparède, 1869 accepted as Arenicolides branchialis (Audouin & Milne Edwards, 1833)
- Species Arenicola loveni Kinberg, 1866
- Species Arenicola marina (Linnaeus, 1758)
- Species Arenicola montagui Leach in Johnston, 1865 accepted as Arenicolides branchialis (Audouin & Milne Edwards, 1833)
- Species Arenicola natalis Girard, 1856 accepted as Arenicola marina (Linnaeus, 1758)
- Species Arenicola nodosa Leach in Johnston, 1865 accepted as Arenicolides branchialis (Audouin & Milne Edwards, 1833)
- Species Arenicola piscatorum Lamarck, 1801 accepted as Arenicola marina (Linnaeus, 1758)
- Species Arenicola pusilla Quatrefages, 1866 accepted as Abarenicola pusilla (Quatrefages, 1866)
- Species Arenicola sudaustraliense Stach, 1944
- Species Arenicola tinctoria Leach, 1816 accepted as Arenicola marina (Linnaeus, 1758)
- Genus Arenicolides Mesnil, 1898
- Genus Arenicoloides Prell, 1926 † accepted as Arenicolides Mesnil, 1898
- Genus Arnicola Oken, 1817 accepted as Arenicola Lamarck, 1801
- Genus Avenicola Grube, 1872 accepted as Arenicola Lamarck, 1801
- Genus Branchiomaldane Langerhans, 1881
- Genus Chorizobranchus Quatrefages, 1866 accepted as Arenicola Lamarck, 1801
- Genus Clymenida Schmarda, 1877
- Genus Clymenides Claparède, 1863
- Genus Eruca
- Genus Protocapitella Berkeley, 1932 accepted as Branchiomaldane Langerhans, 1881
- Genus Pteroscolex Lütken, 1865
- Genus Telethusae Savigny, 1818
- Family Bogueidae Hartman & Fauchald, 1971 accepted as Maldanidae Malmgren, 1867
- Family Capitellida (awaiting allocation)
- Family Capitellidae Grube, 1862
- Family Maldanidae Malmgren, 1867
- Order Chaetopterida
- Order Cirratulida
- Order Cossurida
- Order Ctenodrilida
- Order Dinophilida
- Order Errantida †
- Order Eunicemorpha
- Order Flabelligerida
- Order Magelonida
- Order Myzostomida
- Order Nerillida
- Order Opheliida
- Order Orbiniida
- Order Oweniida
- Order Phyllodocemorpha
- Order Poeobiida
- Order Polychaeta (awaiting allocation)
- Order Polychaeta incertae sedis
- Order Polygordiida
- Order Protodrilida
- Order Psammodrilida
- Order Pseudocirratulida
- Order Sabellida
- Order Scolecida
- Order Serpulimorpha
- Order Spintherida
- Order Spiomorpha
- Order Spionida
- Order Sternaspida
- Order Terebellida
- Order Terebellomorpha
- Order Thecanephria
- Genus Echinokleptus Muir, Botting, Lefebvre, Upton & Zhang, 2019 †
- Genus Kootenayscolex Nanglu & Caron, 2018 †
- Genus Pseudoarenicola Liu & Yang, 1991 †
- Family Lobatocerebridae Rieger, 1980
- Genus Aulozoon Gehling & Runnegar, 2022 †
- Genus Gabavermis Troppenz, 2013 †
- Genus Lapillitubus Belaústegui & Belaústegui, 2017 †
- Genus Meanderovaleichnus Cónsole-Gonella & Aceñolaza, 2014 †
- Genus Shaihuludia Kimmig, LaVine, Schiffbauer, Egenhoff, Shelton & Leibach, 2023 †
- Genus Spitiprion Tonarová, Suttner, & Hints, 2024 †
- Genus Taonurus Saporta & Marion, 1881 †
- Genus Xiaoshibachaeta Yang, Aguado, Yang & Bleidorn, 2024 †
- Phylum Arthropoda
- Phylum Brachiopoda
- Phylum Bryozoa
- Phylum Cephalorhyncha incertae sedis
- Phylum Chaetognatha
- Phylum Chitinozoa †
- Phylum Chordata
- Phylum Cnidaria
- Phylum Ctenophora
- Phylum Cycliophora
- Phylum Cycloneuralia incertae sedis
- Phylum Ecdysozoa incertae sedis †
- Phylum Echinodermata
- Phylum Entoprocta
- Phylum Gastrotricha
- Phylum Gnathostomulida
- Phylum Hemichordata
- Phylum Hyolitha †
- Phylum Kinorhyncha
- Phylum Lobopoda †
- Phylum Loricifera
- Phylum Micrognathozoa
- Phylum Mollusca
- Phylum Monoblastozoa accepted as Animalia incertae sedis
- Phylum Nematoda
- Phylum Nematomorpha
- Phylum Nemertea
- Phylum Onychophora
- Phylum Orthonectida
- Phylum Phoronida
- Phylum Placozoa
- Phylum Platyhelminthes
- Phylum Pogonophora accepted as Siboglinidae Caullery, 1914
- Phylum Porifera
- Phylum Priapula accepted as Priapulida
- Phylum Priapulida
- Phylum Problematica † accepted as Animalia incertae sedis
- Phylum Rhombozoa
- Phylum Rotifera
- Phylum Scalidophora incertae sedis
- Phylum Sipuncula
- Phylum Tardigrada
- Phylum Trace fossils †
- Phylum Vendobionta †
- Phylum Vestimentifera accepted as Siboglinidae Caullery, 1914
- Phylum Vetulicolia †
- Phylum Vinctiplicata incertae sedis †
- Phylum Xenacoelomorpha
- Genus Trilobocaris Pribyl, 1953 †
- Kingdom Archaea
- Kingdom Bacteria
- Kingdom Chromista
- Kingdom Fungi
- Kingdom Plantae
- Kingdom Protista accepted as Protozoa
- Kingdom Protozoa
- Kingdom Viruses
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