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Rhynchotrema seletensis
Taxonomy
Rhynchotrema seletensis was named by Nikitin et al. (2003). Its type specimen is NMGW 98.30G.41 (complete shell) and is a 3D body fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2003 | Rhynchotrema seletensis Nikitin et al. pp. 48 - 50 figs. 5A–F, 6 |
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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.
†Rhynchotrema seletensis Nikitin et al. 2003
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| I. F. Nikitin et al. 2003 | Shell dorsibiconvex, about 80% as long as wide and 80% as thick as long; ventral valve with weakly devel− oped deltidial plates and sulcus originating slightly posterior to mid−valve length; dorsal valve strongly and slightly un− evenly convex in lateral profile with moderately high median fold, trapezoidal in cross section; radial ornament of 11 to 20 ribs with 3 ribs on ventral sulcus and 4 ribs on median fold; ventral muscle field large, extending anterior to mid−length; dorsal median septum slender, about one half as long as the valve. |