List of mollusc orders

List of mollusc orders illustrates the 97 orders in the phylum Mollusca, the largest marine animal phylum. 85,000 extant species are described,[1] making up 23% of described marine organisms.[2]

Cuttlefish of the order Sepiida

Pinna nobilis shell and byssus

Class Aplacophora

Epimenia verrucosa

Subclass Caudofoveata

No orders, 6 families, 15 genera, 150 species.

Subclass Solenogastres

Order Neomeniamorpha
Order Pholidoskepia

Testaria (unranked)

Class Polyplacophora (Chitons)

Order Multiplacophora †
Order Neoloricata
Order Paleoloricata †

Subclass Heterodonta

The venerid species, Austrovenus stutchburyi

The right valve of a shell of Tellinella listeri, anterior end towards the right

Order Arcticoidea
Order Cardioidea
Order Chamoidea
Order Clavagelloidea
Order Crassatelloidea
Order Cuspidarioidea
Order Hippuritoida †
Order Cyamioidea
Order Cyrenoidea
Order Cyrenoidoidea
Order Dreissenoidea
Order Galeommatoidea
Order Gastrochaenoidea
Order Glossoidea
Order Hemidonacoidea
Order Hiatelloidea
Order Limoidea
Order Lucinoidea
Order Mactroidea
Order Myoidea
Order Pandoroidea
Order Pholadoidea
Order Pholadomyoidea
Order Solenoidea
Order Sphaerioidea
Order Tellinoidea
Order Thyasiroidea
Order Ungulinoidea
Order Veneroidea
Order Verticordioidea

Subclass Palaeoheterodonta

Anodonta anatina

Order Trigonioidea
Order Unionoidea

Subclass Protobranchia

Order Manzanelloidea
Order Nuculanoidea
Order Nuculoidea
Order Sapretoidea
Order Solemyoidea

Subclass Pteriomorphia

A live individual of Argopecten irradians, family Pectinidae

Order Anomioidea
Order Arcoidea
Order Dimyoidea
Order Limoidea
Order Mytiloidea
Order Ostreoidea
Order Pectinoidea
Order Pinnoidea
Order Plicatuloidea
Order Pterioidea

Subclass Nautiloidea

A nautiloid

Order Plectronocerida †
Order Ellesmerocerida †
Order Actinocerida †
Order Pseudorthocerida †
Order Ascocerida †
Order Endocerida †
Order Tarphycerida †
Order Oncocerida †
Order Discosorida †
Order Nautilida
Order Orthocerida †
Order Lituitida †
Order Dissidocerida †
Order Bactritida †

Subclass Ammonoidea †

Artist's reconstruction of Asteroceras

Order Goniatitida †
Order Prolecanitida †
Order Ceratitida †
Order Ammonitida †

Division Belemnitida

Order Belemnoidea †
Order Aulacocerida †
Order Phragmoteuthida †
Order Donovaniconida †
Order Belemnitida †
Order Hematitida †

Division Neocoleoidea (most living cephalopods)

A spirula spirula squid

Superorder Decapodiformes
- Order Boletzkyida †
- Order Spirulida ram's horn squid
- Order Sepiida cuttlefish
- Order Sepiolida bobtail squid
- Order Teuthida squid
Superorder Octopodiformes
- Order Vampyromorphida vampire squid
- Order Octopoda octopus

Class Gastropoda

This overview of orders follows the taxonomy of the Gastropoda (Ponder & Lindberg, 1997):

Order Bellerophontinaka (fossil)
Order Mimospirina (fossil)

Subclass Eogastropoda

Order Euomphalida de Koninck 1881 (fossil)
Order Patellogastropoda Lindberg, 1986 (true limpets)

Live limpets in the intertidal zone in Cornwall, England.

Subclass Orthogastropoda Ponder & David R. Lindberg, 1996

Order Murchisoniina Cox & Knight, 1960 (fossil)
Order Neomphaloida Sitnikova & Starobogatov, 1983

Superorder Vetigastropoda Salvini-Plawen, 1989 (limpets)

The shell of an archaeogastropod from the Pliocene of Cyprus. A serpulid worm is attached.

Superorder Neritaemorphi Koken, 1896

Order Cyrtoneritomorpha (fossil)
Order Neritopsina Cox & Knight, 1960

Superorder Caenogastropoda Cox, 1960

Order Architaenioglossa Haller, 1890
Order Sorbeoconcha Ponder & David R. Lindberg, 1997
- Infraorder Littorinimorpha Golikov & Starobogatov, 1975
- Infraorder Ptenoglossa J.E. Gray, 1853
- Infraorder Neogastropoda Thiele, 1929

Superorder Heterobranchia J.E. Gray, 1840

Order Heterostropha P. Fischer, 1885
Order Opisthobranchia Milne-Edwards, 1848
- Infraorder Euthecosomata
- Infraorder Pseudothecosomata
- Infraorder Anthobranchia Férussac, 1819
- Infraorder Cladobranchia Willan & Morton, 1984
- Suborder Eupulmonata Haszprunar & Huber, 1990
  - Infraorder Acteophila Dall, 1885 (= formerly Archaeopulmonata)

Class Monoplacophora

Order Tryblidiida

Class Rostroconchia †

No information available below class

Class Scaphopoda (Tusk shells)

A tusk shell of the scaphopod Antalis vulgaris

Order Dentaliida
Order Gadilida

References

Chapman, A.D. (2009). Numbers of Living Species in Australia and the World, 2nd edition. Australian Biological Resources Study, Canberra. Retrieved 12 January 2010. ISBN 978-0-642-56860-1 (printed); ISBN 978-0-642-56861-8 (online).
Hancock, Rebecca (2008). "Recognising research on molluscs". Australian Museum. Archived from the original on 2009-05-30. Retrieved 2009-03-09.

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[Chapman_2009-1] Chapman, A.D. (2009). Numbers of Living Species in Australia and the World, 2nd edition. Australian Biological Resources Study, Canberra. Retrieved 12 January 2010. ISBN 978-0-642-56860-1 (printed); ISBN 978-0-642-56861-8 (online).

[HancockRecognisingResearch-2] Hancock, Rebecca (2008). "Recognising research on molluscs". Australian Museum. Archived from the original on 2009-05-30. Retrieved 2009-03-09.

Classes of Molluscs
Extant classes	Caudofoveata Solenogastres Polyplacophora Monoplacophora Gastropoda Cephalopoda Bivalvia Scaphopoda
Extinct classes	†Rostroconchia †Helcionelloida