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Rongatrypa zvontsovi
Taxonomy
Nalivkinia (Pronalivkinia) zvontsovi was named by Nikitin et al. (2003). Its type specimen is NMW 98.30G.54 (complete shell) and is a 3D body fossil.
It was recombined as Rongatrypa zvontsovi by Popov and Cocks (2014).
It was recombined as Rongatrypa zvontsovi by Popov and Cocks (2014).
Synonymy list
| Year | Name and author |
|---|---|
| 2003 | Nalivkinia (Pronalivkinia) zvontsovi Nikitin et al. pp. 51 - 53 figs. 8, 9A–F |
| 2014 | Rongatrypa zvontsovi Popov and Cocks pp. 749 - 750 |
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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.
†Rongatrypa zvontsovi Nikitin et al. 2003
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| I. F. Nikitin et al. 2003 | Slightly dorsibiconvex shell about 90% as long as wide and 65% as thick as long, with a strongly uniplicate anterior commissure; dorsal median fold and ventral sulcus broad, occupying about 60% of maximum valve width; radial ornament of 24 to 30 rounded ribs with 4 to 8 ribs in the sulcus, 5 to 9 ribs on the fold. |
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||