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Speonesydrion
Taxonomy
Speonesydrion was named by Campbell and Barwick (1983) [Sepkoski's age data: D Emsi-l Sepkoski's reference number: 1066]. It is the type genus of Speonesydrionidae.
It was assigned to Speonesydrionidae by Campbell and Barwick (1990); to Dipnoi by Campbell and Barwick (1983), Schultze (2001); to Dipteriformes by Sepkoski (2002); and to Dipnorhynchidae by Schultze (1993), van der Laan (2019).
It was assigned to Speonesydrionidae by Campbell and Barwick (1990); to Dipnoi by Campbell and Barwick (1983), Schultze (2001); to Dipteriformes by Sepkoski (2002); and to Dipnorhynchidae by Schultze (1993), van der Laan (2019).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1983 | Speonesydrion Campbell and Barwick |
| 1990 | Speonesydrion Campbell and Barwick |
| 1993 | Speonysedrion Schultze |
| 2001 | Speonysedrion Schultze |
| 2002 | Sponysedrion Sepkoski |
| 2019 | Speonesydrion van der Laan p. 88 |
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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. †Speonesydrion Campbell and Barwick 1983
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†Speonesydrion iani Campbell and Barwick 1983
Diagnosis
No diagnoses are available