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Protanastrophia indistincta
Taxonomy
Parastrophinella indistincta was named by Rubel (1970).
It was recombined as Protanastrophia indistincta by Jin and Popov (2008).
It was recombined as Protanastrophia indistincta by Jin and Popov (2008).
Synonymy list
Year | Name and author |
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1970 | Parastrophinella indistincta Rubel |
2008 | Protanastrophia indistincta Jin and Popov pp. 224, Appendix 2 |
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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.
†Protanastrophia indistincta Rubel 1970
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Diagnosis
Reference | Diagnosis | |
---|---|---|
J. Jin and L. E. Popov 2008 | Shell up to 12 mm long, dorsibiconvex; anterior commissure uniplicate, symmetrical or slightly asymmetrical; ventral sulcus, dorsal fold, and costae developed anteriorly; one or two costae in sulcus, two or three on fold, one to three on each flank; broad spondylium supported by low median septum extending to mid−length of valve; parallel inner hinge plates. |