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Pseudophorus antiquus
Taxonomy
Trochita antiquus was named by Meek (1871). It is a 3D body fossil. It is the type species of Pseudophorus.
It was recombined as Pseudophorus antiquus by Meek (1873), Wagner (2023).
It was recombined as Pseudophorus antiquus by Meek (1873), Wagner (2023).
Sister species lacking formal opinion data
Entered
by P. Wagner on 2006-03-23; modified by P. Wagner on 2013-10-27
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.
†Pseudophorus antiquus Meek 1871
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. B. Meek 1873 | Shell strongly depressed-sub-trochiform, about three times as wide as high; under side flattened, and provided with a broad, shallow, eccentric umbilical impression; volutions t\VO and a half to three, a little convex, with a gentle outward slope .above, and an acutely angular periphery at the connection of the upper slope of the whorls and the. base; suture rather obscure; aperture transversely rhombic, nearly three times as wide as high, with acutely angular outer and inner extremities; upper side of lip very oblique, and extended far forward beyond that below, which latter seems to be nearly straight. Surface of upper side ornamented by rather distinct lines, or small ridges of growth, which cross the volutions very obliquely, with strong backward curves, as they approach the periphery, parallel to the margin of the lip. |
Measurements
No measurements are available
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| Source: superf = superfamily, c = class | |||||
| References: Kiessling 2004, Bambach et al. 2007 | |||||