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Protanastrophia distorta

Rhynchonellata - Pentamerida - Parastrophinidae

Taxonomy
Parastrophinella distorta was named by Nikolaev et al. (1977) [Oradovskaya in Nikolaev, Oradovskaya & Sapelnikov 1977].

It was recombined as Protanastrophia distorta by Jin and Popov (2008).

Synonymy list
YearName and author
1977Parastrophinella distorta Nikolaev et al. p. 48 figs. pl. 5 f. 4
2008Protanastrophia distorta Jin and Popov pp. 223-224, Appendix 2

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Eutriploblastica
Neotriploblastica
Eucoelomata
superphylumLophotrochozoa
Lophophorata
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classRhynchonellataWilliams et al. 1996
orderPentameridaSchuchert and Cooper 1931
suborderSyntrophiidinaUlrich and Cooper 1936
superfamilyCamerelloideaHall and Clarke 1894
familyParastrophinidaeUlrich and Cooper 1938
genusProtanastrophia
speciesdistorta(Nikolaev et al. 1977)

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
ReferenceDiagnosis
J. Jin and L. E. Popov 2008Shells up to 15 mm wide, weakly dorsibiconvex, strongly asymmetrical shell with sigmoidal anterior commissure; rudimentary, apsacline ventral inter− area (Oradovskaya 1983: pl. 9: 2), incipient fold and sulcus originating at 2–3 mm from umbo; up to 24 rounded ribs originating at some distance from umbones of both valves; discrete, subparallel inner hinge plates.