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Geczyceras perplanum
Taxonomy
Hammatoceras perplana was named by Prinz (1904) [Hammatoceras insigne mut. nov. perplana]. It is not extant.
It was recombined as Geczyceras perplanum by Kovács (2009).
It was recombined as Geczyceras perplanum by Kovács (2009).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1904 | Hammatoceras perplana Prinz |
| 1914 | Hammatoceras clavatum Fossa-Mancini p. 67 |
| 2009 | Geczyceras perplanum Kovács p. 13 fig. 4 |
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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 perplanum Prinz 1904
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Invalid names: Hammatoceras clavatum Fossa-Mancini 1914 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 3 | 20.3 | 16.0 | 26.0 | 20.0 | 5.03 | |
| shell diameter | 3 | 86.6 | 82.0 | 92.0 | 86.0 | 5.03 | |
| shell inflation | 3 | 46.4 | 43.0 | 50.0 | 46.5 | 4.95 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Late/Upper Toarcian or 180.40000 to 174.70000 Ma
Collections (12 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Levesquei | Hungary | Geczyceras perplanum (146434) | |
| Variabilis | Hungary | Geczyceras perplanum (108476) | |
| Late/Upper Toarcian | Hungary | Geczyceras perplanum (108594 108595 108630 108631 108635 108638) | |
| Late/Upper Toarcian | Spain (Granada) | Geczyceras perplanum (201292 201302 201304 201306) |