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Platystrophia lutkevichi

Rhynchonellata - Orthida - Platystrophiidae

Taxonomy
Platystrophia lutkevichi was named by Alikhova (1951). Its type specimen is CNIGR 19/8047, a valve (ventral valve), and it is a 3D body fossil. It is the type species of Neoplatystrophia.

It was recombined as Neoplatystrophia lutkevichi by Zuykov and Harper (2007).

Synonymy list
YearName and author
1951Platystrophia lutkevichi Alikhova p. 23 figs. pl. 1 f. 19
2007Neoplatystrophia lutkevichi Zuykov and Harper pp. 27 - 28 figs. Plate II, figures 3-7

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Eutriploblastica
Neotriploblastica
Eucoelomata
superphylumLophotrochozoa
Lophophorata
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classRhynchonellataWilliams et al. 1996
orderOrthidaSchuchert and Cooper 1932
suborderOrthidinaSchuchert and Cooper 1932
superfamilyPlectorthoideaSchuchert and Le Vene 1929
familyPlatystrophiidaeSchuchert 1929
genusPlatystrophia
specieslutkevichiAlikhova 1951

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
M. A. Zuykov and D. A. T. Harper 2007 Neoplatystrophia species having moderate sized to large shells, subrectangular in outline with maximum width in anterior third of shell; ventral sulcus deep, wide with two costae umbonally, increased by implantation of costa on each side, so on anterior margin number commonly four; dorsal median fold with three costae in young growth stages, normally external costae developed on outer pair, with branching on either side of median costa in later growth stages, resulting with five costae at anterior margin; on each flank about nine costae which may increase to 12 by development, not only of additional costae along the hingeline at later stages of growth, but by implantation of additional costae.