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Hyphantoceras (Madagascarites)
Taxonomy
Madagascarites was named by Collignon (1966) [Sepkoski's age data: K Turo-u K Sant-u].
It was reranked as Hyphantoceras (Madagascarites) by Summesberger (1979), Summesberger (1980) and Klinger (1985).
It was assigned to Hyphantoceras by Summesberger (1979), Summesberger (1980) and Klinger (1985); and to Ammonoidea by Sepkoski (2002).
It was reranked as Hyphantoceras (Madagascarites) by Summesberger (1979), Summesberger (1980) and Klinger (1985).
It was assigned to Hyphantoceras by Summesberger (1979), Summesberger (1980) and Klinger (1985); and to Ammonoidea by Sepkoski (2002).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1966 | Madagascarites Collignon |
| 1979 | Hyphantoceras (Madagascarites) Summesberger p. 122 |
| 1980 | Hyphantoceras (Madagascarites) Summesberger p. 277 |
| 1985 | Hyphantoceras (Madagascarites) Klinger p. 6 |
| 2002 | Madagascarites 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.
Subg. †Hyphantoceras (Madagascarites) Collignon 1966
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Diagnosis
No diagnoses are available