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Rhombovomeria passer
Taxonomy
Rostellaria passer was named by Zekeli (1852). It is the type species of Rhombovomeria.
It was recombined as Rhombovomeria passer by Kollmann (2009).
It was recombined as Rhombovomeria passer by Kollmann (2009).
Synonymy list
| Year | Name and author |
|---|---|
| 1852 | Rostellaria passer Zekeli p. 68 figs. pl. 12, fig. 6 |
| 2009 | Rhombovomeria passer Kollmann pp. 44 - 46 fig. 6.2 |
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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.
†Rhombovomeria passer Zekeli 1852
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| H. A. Kollmann 2009 | The shell is large and the spire high. The whorls are strongly convex and show traces of collabral ribs and spiral threads. The last whorl is high, the strongly inclined subsutural ramp is terminated abapically by an indistinct angulation. The sculpture is clathrate and consists of widely spaced collabral ribs and almost equally strong spiral ribs. The labral wing is massive, triangular in outline and attached to the penultimate whorl. Adapically, it extends into a broad, lanceolate digitation. The external margin shows irregular, rounded processes with narrow incisions. The rostrum is not preserved.
In the internal mould, the angulation terminating the ramp abapically is more accentuated. Another angulation is developed towards the base. The whole whorl including the base is covered by weak spiral ribs. Each angulation bears a ribbon, two additional ribbons are located on the whorl face between them. The ribbons extend to the margin of the labral wing where they form short spines. |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| Reference: Kiessling 2004 | |||||