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Pseudoparazyga
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).
It was assigned to Retziidae by Johnson (1970); to Rhynchospirinidae by Williams et al. (2002); and to Spiriferida by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1970 | Pseudoparazyga Johnson p. 181 |
| 2002 | Pseudoparazyga Sepkoski |
| 2002 | Pseudoparazyga Williams et al. p. 1600 |
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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.
G. †Pseudoparazyga Johnson 1970
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†Pseudoparazyga cooperi Merriam 1940
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Invalid names: Trematospira mcbridei Merriam 1973 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. G. Johnson 1970 | Pseudoparazyga 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. |
Measurements
No measurements are available
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| Source: f = family, subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Hendy 2009, Nesnidal et al. 2013, Aberhan et al. 2004 | |||||