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Merismoconcha
Taxonomy
Merismoconcha was named by Yü (1979) [Sepkoski's age data: Cm Tomm-u Cm Atda Sepkoski's reference number: 1006]. It is not extant. Its type is Merismoconcha multisegmentata.
It was assigned to Mollusca by Sepkoski (2002), Devaere et al. (2013).
It was assigned to Mollusca by Sepkoski (2002), Devaere et al. (2013).
Species
M. multisegmentata (type species)
Entered
by J. Sepkoski on 2003-01-23; modified by U. Merkel on 2013-10-27
Synonymy list
| Year | Name and author |
|---|---|
| 1979 | Merismoconcha Yü |
| 2002 | Merismoconcha Sepkoski |
| 2013 | Merismoconcha Devaere et al. p. 43 |
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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.
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. Devaere et al. 2013 | Minute, narrowly elongate, spoon-shaped conchs. Dorsal side of internal mold divided into two unequal parts (body segment longest) by a transverse notch corresponding to a transverse costae in the shell. Surface ornamented with concentric rugae, radial ridges or lines and growth lines. Aperture elongate-oval. |