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Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Gastropoda
Subclassis: Caenogastropoda
Ordo: Littorinimorpha
Superfamilia: Tonnoidea
Familiae (9): BursidaeCassidaeCharoniidaeCymatiidaeLaubierinidae – Personidae – Ranellidae – Thalassocyonidae – Tonnidae


Tonnoidea Suter, 1913 (1825)

Cassoidea (junior synonym)
Primary references

Suter, H. 1913. Manual of the New Zealand Mollusca. Wellington: Mackay. xxiii + 1120 pp. Reference page.

Additional references

Bouchet, P. & Rocroi, J.-P. 2005. Classification and nomenclator of gastropod families. Malacologia 47(1–2): 1–397. BHL Reference page.
Beu, A.G., Bouchet, P. & Tröndle, J. 2012. Tonnoidean gastropods of French Polynesia. Molluscan research 32(2): 61–120. Abstract. Reference page.


Tonnoidea in the World Register of Marine Species

The Tonnoidea are a superfamily of sea snails, marine gastropod molluscs in the order Littorinimorpha.[1][2] This superfamily includes many very large species.


Beu (1998, 2008) favours usage of Tonnoidea and Tonnidae rather than Cassoidea and Cassidae preferred by Riedel (1995). This is in agreement with the action of Thiele (1925) who placed Tonnidae and Cassidae under "stirps Tonnacea", therefore acting as first reviser under ICZN art. 24

Families within the superfamily Tonnoidea include:[1]

Bursidae, the frog shells
Cassidae, the helmet shells and bonnet shells
Ranellidae, the tritons
Tonnidae, the tun shells

Families brought into synonymy

Aquillidae Pilsbry, 1904: synonym of Cymatiinae Iredale, 1913 (1854)
Distorsioninae Beu, 1981: synonym of Personidae Gray, 1854
Doliidae Latreille, 1825: synonym of Tonnidae Suter, 1913 (1825)
Galeodoliidae Sacco, 1891: synonym of Tonnidae Suter, 1913 (1825)
Lampusiidae Newton, 1891: synonym of Cymatiinae Iredale, 1913 (1854)
Lotoriidae Harris, 1897: synonym of Cymatiinae Iredale, 1913 (1854)
Macgillivrayiidae H. Adams & A. Adams, 1854: synonym of Tonnidae Suter, 1913 (1825)
Nyctilochidae Dall, 1912: synonym of Cymatiinae Iredale, 1913 (1854)
Oocorythidae P. Fischer, 1885: synonym of Cassidae Latreille, 1825
Personinae Gray, 1854: synonym of Personidae Gray, 1854 (original rank)
Septidae Dall & Simpson, 1901: synonym of Cymatiinae Iredale, 1913 (1854)
Simpulidae Dautzenberg, 1900: synonym of Cymatiinae Iredale, 1913 (1854)
Tritoniidae H. Adams & A. Adams, 1853: synonym of Ranellidae Gray, 1854 (Invalid: type genus a junior homonym of Tritonium O.F. Müller, 1776. Also homonym of Tritoniidae Lamarck, 1809 based on Tritonia Cuvier, 1797)


Tonnoidea Suter, 1913 (1825). Retrieved through: World Register of Marine Species on 4 December 2018.

Bouchet, P. & Rocroi, J.-P. (2005). "Classification and Nomenclator of Gastropod Families". Malacologia. 47 (1–2).

Millard, V. (1996). Classification of Mollusca: a classification of world wide Mollusca. Victor G. Millard: Rhine Road, South Africa. ISBN 0-620-21261-6. 544 pp

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