Sometimes taxonomists create new names for groups that already have a name. They may do this because they are unaware of the original name, or they may think the organism before them belongs to a different group when in fact it does not. If two or more names are found to apply to the same group, they are considered synonyms. In most cases, the first name takes priority and is considered to be the valid or accepted name. However, there can be exceptions, and it's not always easy to determine which of a series of synonyms should be considered valid or accepted. Here we list the synonyms provided to EOL by our classification partners. We also include other versions of the name that most likely refer to the same group, for example, misspellings in the literature or different variations of the authorship associated with the name.

Preferred marks the preferred name from each source.


Name Relationship
Littorinimorpha Preferred
Crepidulidae Fleming, 1822 Synonym
Sacculidae Thiele, 1929
Realiidae L. Pfieffer, 1853
Eratoidae Gill, 1871
Coxiellidae Iredale, 1943
Amphiperatidae Gray, 1853
Cymatiidae Iredale, 1913
Lacunidae Gray 1857
Barleeidae Gray 1857
Choristidae Verrill 1882
Choristeidae Verrill 1882
Lamellariidae D'Orbigny, 1841
Annulariidae Henderson & Bartsch, 1920
Pelycidiidae Ponder & Hall, 1983
Ctiloceratidae Iredale & Laseron, 1957
Baicaliidae P. Fischer, 1885
Lepyriidae Pisbry & Olsson, 1951
Caledoniellidae Rosewater, 1969
Chondropomatidae Henderson & Bartsch, 1920
Delavayidae Annandale 1924
Emmericiidae Brusina, 1870
Micromelaniidae B. Dybowski & Grochmalicki, 1914
Faxiidae Ravn, 1933
Pseudosacculidae Kuroda, 1933
Vitrinellidae Bush, 1897
Trichotropidae Gray, 1850
Pomatiasidae Gray, 1852
Seraphidae Gray, 1853
Firolidae Rafinesque 1815
Pyrgulidae Brusina, 1882
Coriandriidae F. Nordsieck, 1972
Paludestrinidae Newton, 1891
Adeorbidae Monterosato, 1884
Benedictiidae Clessin, 1880
Doliidae Latreille, 1825
Reynellonidae Iredale, 1917
Pyrulidae Swainson, 1840
Ficulidae Carpenter, 1857
Cyclostomatidae Menke, 1828
Ericiidae Wenz, 1915
Risellidae Kesteven, 1903
Cheileidae Macpherson & Chapple, 1951
Tibiidae Golikov & Starobogatov, 1975
Pterosomatidae Rang, 1829
Naricidae Récluz, 1845
Merriidae Hedley, 1918
Ansolidae Slavoshevskaya 1975
Sycotypidae Gray, 1853
Melarhaphidae Starobogatov & Sitnikova, 1983
Lippistidae Iredale, 1924
Lyocyclidae Thiele, 1925
Terebellidae H. Adams & A. Adams, 1854
Bembiciidae Finlay, 1928
Thalassocyonidae F. Riedel, 1995

Paleobiology Database

Name Relationship
Littorinimorpha Golikov & Starobogtov, 1975 Preferred
Naticacea Forbes 1838
Calyptraeacea Lamarck 1809


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