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Cyrtodiscus
Taxonomy
Oxydiscus (Cyrtodiscus) was named by Perner (1903) [Sepkoski's age data: O Llde O u Sepkoski's reference number: 1].
It was reranked as Cyrtodiscus by Knight et al. (1960), Horný (1963), Runnegar and Jell (1976), Yü (1986), Horný (1997) and Sepkoski (2002).
It was assigned to Oxydiscus by Perner (1903); to Temnodiscinae by Horný (1963); to Cyrtolitidae by Knight et al. (1960), Runnegar and Jell (1976), Yü (1986) and Horný (1997); and to Mollusca by Sepkoski (2002).
It was reranked as Cyrtodiscus by Knight et al. (1960), Horný (1963), Runnegar and Jell (1976), Yü (1986), Horný (1997) and Sepkoski (2002).
It was assigned to Oxydiscus by Perner (1903); to Temnodiscinae by Horný (1963); to Cyrtolitidae by Knight et al. (1960), Runnegar and Jell (1976), Yü (1986) and Horný (1997); and to Mollusca by Sepkoski (2002).
Subtaxa
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1903 | Oxydiscus (Cyrtodiscus) Perner |
| 1960 | Cyrtodiscus Knight et al. p. 175 |
| 1962 | Gamadiscus Horný pp. 473 - 474 |
| 1963 | Cyrtodiscus Horný |
| 1963 | Gamadiscus Horný |
| 1976 | Cyrtodiscus Runnegar and Jell p. 118 |
| 1976 | Gamadiscus Runnegar and Jell p. 121 |
| 1986 | Cyrtodiscus Yü p. 15 |
| 1997 | Cyrtodiscus Horný |
| 2002 | Cyrtodiscus Sepkoski |
| 2002 | Gammadiscus Sepkoski |
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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. †Cyrtodiscus Perner 1903
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†Cyrtodiscus evolvens Perner 1903
†Cyrtodiscus nitidus Perner 1903
†Cyrtodiscus procer Perner 1903
†Cyrtodiscus simaki Horný 1997
Invalid names: Gamadiscus Horný 1962 [synonym]
Diagnosis
No diagnoses are available