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Parastrophina portentosa
Taxonomy
Parastrophinella portentosa was named by Nikitin et al. (1996) [Nikitin and Popov in Nikitin et al. 1996: ]. Its type specimen is CNIGR 28/12888, a valve (conjoined valves), and it is a 3D body fossil. Its type locality is F-1014. Sortan-Manai salt marsh, Betpak-Dala desert, mud mound, which is in a Katian reef, buildup or bioherm floatstone in the Dulankara Formation of Kazakhstan.
It was recombined as Parastrophina portentosa by Jin and Popov (2008).
It was recombined as Parastrophina portentosa by Jin and Popov (2008).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1996 | Parastrophinella portentosa Nikitin et al. p. 91 figs. 5C, 6A–K |
| 2008 | Parastrophina portentosa Jin and Popov pp. 225 - 226, Appendix 2 figs. 4, 5 |
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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.
†Parastrophina portentosa Nikitin et al. 1996
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. Jin and L. E. Popov 2008 | Shell subpentagonal, dorsibi− convex, asymmetrical, with sigmoidal anterior commissure; ventral sulcus and dorsal fold originating at 7 mm or more from apex; costae subangular, 5–12 per valve, present in shells larger than 11 mm long. Spondylium V−shaped in transverse cross section, supported by medium septum along its entire length; septalium narrow, usually asymmetrical in cross section, supported by low median septum. |