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Virgiana decussata
Taxonomy
Pentamerus decussatus was named by Whiteaves (1891) [4 syntypes]. Its type specimen is GSC 8997 and is a 3D body fossil.
It was recombined as Conchidium decussatum by Hall and Clarke (1892); it was recombined as Virgiana decussata by Savage (1918), Jin and Copper (2000) and Jin et al. (2006).
It was recombined as Conchidium decussatum by Hall and Clarke (1892); it was recombined as Virgiana decussata by Savage (1918), Jin and Copper (2000) and Jin et al. (2006).
Synonymy list
| Year | Name and author |
|---|---|
| 1891 | Pentamerus decussatus Whiteaves p. 295 figs. Pl. 3, figs. 3, 4 |
| 1892 | Conchidium decussatum Hall and Clarke p. 235 figs. Pl. 65, figs. 1, 2, Pl. 66, fig. 15. |
| 1918 | Virgiana decussata Savage pp. 334-336 |
| 2000 | Virgiana decussata Jin and Copper pp. 24 - 26 figs. Plate 1, figures 1-9; Plate 2, figures 1-9; Plate 3, figures 1-9; Figure 10 |
| 2006 | Virgiana decussata Jin et al. |
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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.
†Virgiana decussata Whiteaves 1891
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. Jin and P. Copper 2000 | Shell large, elongate, strongly biconvex, with pedicle valve about twice as deep as brachial valve. Hingeline short, curved. Anterior commissure gently sulcate. |