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Pseudoparazyga

Rhynchonellata - Athyridida - Rhynchospirinidae

Taxonomy
Pseudoparazyga was named by Johnson (1970) [Sepkoski's age data: D Gedi-u D Emsi Sepkoski's reference number: 25,1239].

It was assigned to Retziidae by Johnson (1970); to Rhynchospirinidae by Williams et al. (2002); and to Spiriferida by Sepkoski (2002).

Synonymy list
YearName and author
1970Pseudoparazyga Johnson p. 181
2002Pseudoparazyga Sepkoski, Jr.
2002Pseudoparazyga Williams et al. p. 1600

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Eutriploblastica
Neotriploblastica
Eucoelomata
superphylumLophotrochozoa
Lophophorata
phylumBrachiopodaCuvier 1805
RankNameAuthor
subphylumRhynchonelliformeaWilliams et al. 1996
classRhynchonellataWilliams et al. 1996
orderAthyrididaBoucot et al. 1964
suborderRetziidinaBoucot et al. 1964
superfamilyRhynchospirinoideaSchuchert 1929
familyRhynchospirinidaeSchuchet 1929
genusPseudoparazyga

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. G. Johnson 1970Pseudoparazyga resembles Parazyga in shape and in radial ornament. Internally, it is characterized by the presence in large shells of a pedicle collar and the absence of dental lamellae. Socket plates are medially conjunct.