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Geczyceras costatum
Taxonomy
Hammatoceras costatum was named by Gabilly (1973). It is not extant.
It was recombined as Geczyceras costatum by Géczy and Szente (2006) and Kovács (2009).
It was recombined as Geczyceras costatum by Géczy and Szente (2006) and Kovács (2009).
Synonymy list
| Year | Name and author |
|---|---|
| 1973 | Hammatoceras costatum Gabilly |
| 2006 | Geczyceras costatum Géczy and Szente figs. Pl 10, figs 2,3 |
| 2009 | Geczyceras costatum Kovács p. 11 |
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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.
†Geczyceras costatum Gabilly 1973
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Diagnosis
No diagnoses are available