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Goniasma

Gastropoda - Goniasmatidae

Synonymy list
YearName and author
1930Goniasma Tomlin
1944Murchisonia (Goniasma) Reed p. 335
1960Goniasma Knight et al. p. 293
1995Stegocoelia (Goniasma) Batten p. 22
2000Goniasma Nützel and Bandel
2002Goniasma Bandel p. 96
2002Goniasma Pan and Erwin p. 19
2002Goniasma Sepkoski
2005Goniasma Bouchet et al. p. 82
2005Goniasma Nützel and Pan p. 1176
2015Goniasma Mazaev p. 936
2016Goniasma Nützel and Ketwetsuriya p. 504
2020Goniasma Ketwetsuriya et al. p. 65

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
RankNameAuthor
phylumMollusca
classGastropoda
subclassCaenogastropoda(Cox 1959)
superfamilyOrthonematoideaNützel and Bandel 2000
familyGoniasmatidae()
genusGoniasmaTomlin 1930

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. †Goniasma Tomlin 1930
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Goniasma dalryensis Donald 1895
Goniasma fischeri Stuckenberg 1905
Goniasma fortecarinata Nützel and Nakazawa 2012
Goniasma fusuiensis Pan and Erwin 2002
Goniasma gerassimovi Mazaev 2019
Goniasma gzheliensis Mazaev 2011
Goniasma helicaformis Sayre 1930
Goniasma imparlineata Netchaev 1894
Goniasma lasallense Worthen 1890
Goniasma multilineata Netchaev 1894
Goniasma nodifera Nützel and Nakazawa 2012
Goniasma praecosis Licharev 1977
Goniasma pygmaea Mazaev 2011
Goniasma rara Licharev 1975
Goniasma subangulata de Verneuil 1845
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Invalid names: Murchisonia golowinskii Yakovlev 1899 [synonym], Murchisonia golowkinskii Yakovlev 1899 [synonym]
Goniasma sulcata Xi 1974
Goniasma terebra White 1879
Goniasma tricarinata Nützel and Ketwetsuriya 2016
Goniasma zarecznyi Gürich 1903
Diagnosis
ReferenceDiagnosis
R. L. Batten 1995As discussed above, I believe the characters that separate the other subgenera of Stegocoelia apply equally to this subgenus. The generic features of a highspired, turreted shell with a pronounced midwhorl to low whorl periphery with a selenizone located near the periphery apply to this subgenus. The distinctive subgeneric feature which serves to separate S. Goniasma from S. Hypergonia, for example, is the placement of the selenizone just below the periphery.