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 edit

 
Epimenia verrucosa

Subclass Caudofoveata edit

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

Subclass Solenogastres edit

Testaria (unranked) edit

Class Polyplacophora (Chitons) edit

Subphylum Conchifera edit

Class Bivalvia edit

Subclass Heterodonta edit
 
The right valve of a shell of Tellinella listeri, anterior end towards the right
 
The venerid species, Austrovenus stutchburyi
Subclass Palaeoheterodonta edit
 
Anodonta anatina
Subclass Protobranchia edit
Subclass Pteriomorphia edit
 
A live individual of Argopecten irradians, family Pectinidae

Class Cephalopoda edit

Subclass Nautiloidea edit
 
A nautiloid
Subclass Ammonoidea edit
 
Artist's reconstruction of Asteroceras

Subclass Coleoidea edit

Division Belemnitida edit
Division Neocoleoidea (most living cephalopods) edit
 
A spirula spirula squid

Class Gastropoda edit

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

Subclass Eogastropoda

 
Live limpets in the intertidal zone in Cornwall, England.

Subclass Orthogastropoda Ponder & David R. Lindberg, 1996

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

Superorder Caenogastropoda Cox, 1960

Superorder Heterobranchia J.E. Gray, 1840

Class Monoplacophora edit

  • Order Tryblidiida

Class Rostroconchia edit

No information available below class

Class Scaphopoda (Tusk shells) edit

 
A tusk shell of the scaphopod Antalis vulgaris

See also edit

References edit

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