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Gyrophiceras
Taxonomy
Gyrophiceras was named by Spath (1934). It is not extant.
It was assigned to Ceratitida by Xu (1988); and to Gyronitidae by Spath (1934) and Zakharov and Mu (2007).
It was assigned to Ceratitida by Xu (1988); and to Gyronitidae by Spath (1934) and Zakharov and Mu (2007).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1934 | Gyrophiceras Spath |
| 1988 | Gyrophiceras Xu p. 445 |
| 2007 | Gyrophiceras Zakharov and Mu p. 866 |
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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. †Gyrophiceras Spath 1934
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†Gyronites vermiformes Waagen 1895
†Gyrophiceras gangeticum de Koninck 1863
†Gyrophiceras plicatum Chao 1959
†Gyrophiceras subplicatum Zakharov and Mu 2007
†Gyrophiceras vermiformis Waagen 1895
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 7 | 14.1 | 8.00 | 21.0 | 15.2 | 4.67 | |
| shell diameter | 7 | 39.6 | 22.8 | 58.0 | 42.0 | 12.8 | |
| shell inflation | 7 | 15.0 | 9.40 | 22.0 | 17.0 | 5.30 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Induan | China (Anhui) | G. sp. (95654) | |
| Griesbachian | India | Xenodiscus gangeticus (110990 110992 110993) | |
| Griesbachian | China (Guizhou) | G. subplicatum (113866 113868 113871) | |
| Griesbachian - Smithian | China (Qinghai) | G. vermiformes (103160) | |
| Smithian | Pakistan | Gyronites vermiformis (143847) | |
| Smithian | China (Gunagxi) | G. hsui (44014) G. plicatum (44000) | |
| Olenekian | Indonesia | G. vermiformis (214983) | |
| Dienerian | Pakistan | Lecanites gangeticus (143838) |