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Nikitinamena
Taxonomy
Nikitinamena was named by Popov and Cocks (2006).
It was assigned to Palaeostrophomeninae by Popov and Cocks (2006).
It was assigned to Palaeostrophomeninae by Popov and Cocks (2006).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2006 | Nikitinamena Popov and Cocks pp. 256 - 258 |
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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.
G. †Nikitinamena Popov and Cocks 2006
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†Nikitinamena bicostata Popov and Cocks 2006
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. E. Popov and L. R. M. Cocks 2006 | Shell concavoconvex, geniculate; rhomboidal
outline; anterior commissure weakly uniplicate; ventral valve with two widely diverging, low, angular plications enclosing very shallow sulcus; ventral interarea apsacline with small, apical pseudodeltidium; dorsal valve with low median fold and linear, hypercline interarea. Chilidial plates separate; radial ornament finely and unevenly parvicostellate.Ventral interior with small teeth and small bilobed muscle field; short adductor scar completely separating larger diductor scars; ventral mantle canal system saccate with short, diverging vascula media; dorsal interior with simple, bulbous cardinal process on low notothyrial platform and with small curved socket plates; median septum fine, extending anteriorly to mid length. |
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||