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Walnichollsia

Gastropoda - Murchisoniina - Gosseletinidae

Synonymy list
YearName and author
1958Walnichollsia Fletcher p. 143
2002Walnichollsia Sepkoski, Jr.
2017Walnichollsia Wagner p. G1658

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
classGastropodaCuvier 1797
RankNameAuthor
subclassOrthogastropoda
orderMurchisoniina
superfamilyEotomarioidea
familyGosseletinidae
subfamilyGosseletininae
subtribeGlabrocingulides
genusWalnichollsia

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.

Diagnosis
ReferenceDiagnosis
H.O. Fletcher 1958Large subturbinate, thin-shelled, widely phaneromphalous gastropods of five whorls; body whorl extended somewhat transversely; whorl profile rounded at the periphery, gently arched above and below; no apparent sinus on the outer lip (not actually observed); an ill-defined, shallow selenizone is developed lying between two faint carinae barely distinguishable from the spiral costae, and developed on the periphery; aperture elongate-oval, obliquely transverse; ornamentation strong spiral costae crossed by finer transverse lirae, forming a definite lattice structure.