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Orthaulax
Taxonomy
Orthaulax was named by Gabb (1872) [Sepkoski's age data: T Eo-l T Mi-m Sepkoski's reference number: 814,1074].
It was assigned to Strombidae by Nagao (1928), Nagao (1928) and Gardner (1947); to Neotaenioglossa by Sepkoski (2002); and to Thersiteidae by Bandel (2007).
It was assigned to Strombidae by Nagao (1928), Nagao (1928) and Gardner (1947); to Neotaenioglossa by Sepkoski (2002); and to Thersiteidae by Bandel (2007).
Synonyms
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Synonymy list
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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. †Orthaulax Gabb 1872
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†Orthaulax aguadillensis Maury 1920
†Orthaulax altilis Pilsbry 1922
†Orthaulax bermudezi Clench and Aguayo 1939
†Orthaulax brasiliensis Maury 1925
†Orthaulax caepa Cooke 1921
†Orthaulax conoides Woodring 1923
†Orthaulax gabbi Dall 1890
†Orthaulax hernandoensis Mansfield 1937
†Orthaulax inornatus Gabb 1872
†Orthaulax japonicus Nagao 1924
†Orthaulax portoricoensis Hubbard 1921
†Orthaulax pugnax Heilprin 1887
Invalid names: Wagneria Heilprin 1887 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| K. Bandel 2007 | Growth of the shell is allometric with increasing relative length of the outer lip in comparison to the height of the spire. During juvenile growth the outer lip expands in posterior direction and reaches the apex before the shell is fully grown. During further growth whorls may cover the whole shell and increase the apical angle. Whorls of the spire are rounded and have a fine ornament of low axial ribs and fine spiral lines besides occasional varices. The inner lip is narrow in front and has a callus pad next to the posterior part of the outer lip. Growth is terminated with the outer lip of the body whorls expanded outward and posterior callus pad thickened forming the margin of a narrow fissure to the end of the outer lip on the spire. The whorls of Orthaulax inornatus remain visible and a fine spiral ornament covers the base of the body whorl |