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Tritonophon

Gastropoda - Bellerophontida - Plectonotidae

Taxonomy
Kokenospira (Tritonophon) was named by Öpik (1953) [Sepkoski's age data: S Ldov-l D Eife Sepkoski's reference number: 362]. Its type is Nylanderina goldringae.

It was reranked as Tritonophon by Peel (1974), Wahlman (1992), Sepkoski (2002) and Ebbestad et al. (2008).

It was assigned to Kokenospira by Öpik (1953); to Bellerophontida by Sepkoski (2002); and to Plectonotinae by Peel (1974), Wahlman (1992) and Ebbestad et al. (2008).

Synonymy list
YearName and author
1953Kokenospira (Tritonophon) Öpik p. 52
1974Tritonophon Peel
1992Tritonophon Wahlman
2002Tritonophon Sepkoski
2008Tritonophon Ebbestad et al. pp. 607 – 608

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classGastropoda
orderBellerophontidaUlrich and Scofield 1897
suborderBellerophontina
superfamilyBellerophontoidea()
familyPlectonotidae()
genusTritonophon()

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

G. †Tritonophon Öpik 1953
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Tritonophon bohemica Perner 1903
Tritonophon carina Beushausen 1884
Tritonophon peeli Horný 1997
Tritonophon subtrilobatus Troedsson 1919
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Invalid names: Tritonophon atavus Troedsson 1919 [synonym]
Tritonophon trilobatus de Sowerby and Murchison 1839
Tritonophon trimetra Öpik 1953
Diagnosis
ReferenceDiagnosis
J. O. R. Ebbestad et al. 2008Bellerophontid with 3–4 whorls bearing a strongly trilobed median dorsal lobe, the selenizone occupying the full width of the upper surface of the central lobe. Spiral ornamentation on entire shell common, but may be lacking in some species.