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Postalia

Gastropoda - Sorbeoconcha - Planaxidae

Taxonomy
Postalia was named by Oppenheim (1896) [Sepkoski's age data: T Eo-l T Eo-u Sepkoski's reference number: 1248].

It was assigned to Fossaridae by Garvie (1996); and to Neotaenioglossa by Sepkoski (2002).

Species lacking formal opinion data

View classification of included taxa

Synonymy list
YearName and author
1896Postalia Oppenheim pp. , p. 165-166
1996Postalia Garvie p. 54
2002Postalia Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
RankNameAuthor
classGastropodaCuvier 1797
orderSorbeoconchaPonder and Lindberg 1997
superfamilyCerithioidea(FĂ©russac 1819)
familyPlanaxidaeGray 1850
subfamilyFossarinae(Adams 1860)
genusPostaliaOppenheim 1896

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
C. L. Garvie 1996Shell medium in size, of two and a half whorls with very deeply impressed sutures, the last whorl comprising almost the entire shell. The first one and a half whorls are similar to an Adeorbis, with a globose protoconch that develops stronger spiral sculp' turc on the last whorl. The last whorl making up the adult shell expands very rapidly, opening out trumpet-like, the aperture in a plane parallel to the axis. The outer lip is simple, the columella thin, vertical and defining one edge of a deep but narrow umbilicus. The ornament consists of narrow spiral ribs, 22 on the last whorl, 12 on the preceding. (Free translation of Oppenheim, 1896, pp. 165-166)