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Praeargyrothecidae
Taxonomy
Praeargyrothecidae was named by MacKinnon and Smirnova (1995). Its type is Praeargyrotheca.
It was assigned to Megathyridoidea by MacKinnon and Smirnova (1995) and Williams et al. (2006).
It was assigned to Megathyridoidea by MacKinnon and Smirnova (1995) and Williams et al. (2006).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1995 | Praeargyrothecidae MacKinnon and Smirnova p. 671 |
| 2006 | Praeargyrothecidae Williams et al. p. 2221 |
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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.
Fm. †Praeargyrothecidae MacKinnon and Smirnova 1995
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G. †Krimargyrotheca MacKinnon and Smirnova 1995
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†Krimargyrotheca balkii MacKinnon and Smirnova 1995
†Krimargyrotheca concinna Smirnova 1972
G. †Praeargyrotheca
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†Praeargyrotheca hexaplicata Smirnova 1972
†Praeargyrotheca megatrema Sowerby 1836
†Praeargyrotheca quadricostata Nekvasilova 1985
Invalid names: Smirnovaena [synonym]
Diagnosis
No diagnoses are available