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Angyomphalus radians
Taxonomy
Solarium radians was named by de Koninck (1843). It is not a trace fossil.
It was recombined as Euomphalus radians by de Koninck (1844); it was recombined as Straparollus radians by d'Orbigny (1850); it was recombined as Raphistoma radians by de Koninck (1881); it was recombined as Angyomphalus radians by Cossmann (1915) and Knight (1941); it was recombined as Trepospira (Angyomphalus) radians by Gromczakiewicz-Łomnicka (1973).
It was recombined as Euomphalus radians by de Koninck (1844); it was recombined as Straparollus radians by d'Orbigny (1850); it was recombined as Raphistoma radians by de Koninck (1881); it was recombined as Angyomphalus radians by Cossmann (1915) and Knight (1941); it was recombined as Trepospira (Angyomphalus) radians by Gromczakiewicz-Łomnicka (1973).
Synonymy list
| Year | Name and author |
|---|---|
| 1843 | Solarium radians de Koninck p. 517 |
| 1844 | Euomphalus radians de Koninck p. 442 figs. pl. 23 f. 5 |
| 1850 | Straparollus radians d'Orbigny p. 30–31 |
| 1881 | Raphistoma radians de Koninck p. 135 figs. pl. 12 f. 12-14 |
| 1915 | Angyomphalus radians Cossmann p. 152 |
| 1941 | Angyomphalus radians Knight pp. 36 -37 figs. pl. 31 f. 3a-d |
| 1973 | Trepospira (Angyomphalus) radians Gromczakiewicz-Łomnicka pp. 30 - 31 |
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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.
†Angyomphalus radians de Koninck 1843
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. B. Knight 1941 | Moderately small, lenticular gastropods with low spire, gently convex upper surface, and a sinus columinating in a shallow slit that gives rise to a selenizone just above the periphery; whorl profile between sutures slightly shouldered close to the upper suture, otherwise very gently arched, on the final whorl sharply angulated at the periphery; sutures shallow; base strongly arched, hemiomphalus, a shelflike funicle extending a little into the umbilicus and marked off from the base by a shallow groove; nucleus seemingly simple, dextral, and with rounded whorls; columellar lip thin next to the parietal wall but with a thick subtriangular section at the circumumbilical funicle; outer lip thin, sharply angulated at the periphery, its outer margin with a deep angular sinus culminating in a seemingly shallow slit which gives rise to a flat selenizone on the surface just above the peripheral angulation, the growth lines on the upper surface sweeping obliquely backward from the upper suture to the selenizone with marked forward convexity and on the base at first sweeping strongly forward from the angulation and then rounding strongly into the umbilicus; ornamentation a series of nodes on the shoulder just below the upper suture somewhat elongated radially, growth lines and lunulae on the selenizone very faint. A metatype at Brussels measures nearly 9 mm. in height and 16 mm. in width, with a pleural angle of about 123 degrees. The holotype is slightly smaller. |