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Sowerbyella (Sowerbyella) elusa
Taxonomy
Sowerbyella elusa was named by Williams (1962). Its type specimen is BB.15871, a shell (complete specimen), and it is a 3D body fossil.
It was recombined as Sowerbyella (Sowerbyella) elusa by Candela and Harper (2014).
It was recombined as Sowerbyella (Sowerbyella) elusa by Candela and Harper (2014).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1962 | Sowerbyella elusa Williams p. 180 figs. Pl. XVII, figs. 20-23 |
| 2014 | Sowerbyella (Sowerbyella) elusa Candela and Harper pp. Supplement 1 |
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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.
†Sowerbyella (Sowerbyella) elusa Williams 1962
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. Williams 1962 | Elongately semi-oval Sowerbyella with the length of the pedicle valve less than two-thirds its width, lateral profile strongly concavo-convex with the pedicle valve less than one-half as deep as long, ventral transverse profile showing a median flattening giving way anteriorly to a poorly defined nasute condition; ornamentation parvicostellate by intercalation, but with every fourth costella so strongly accentuated that the sectors between appear to be slightly concave in antero-ventral transverse profile, costellae fine, most commonly numbering 7 per millimetre antero-medianly. |