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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Calygirtyoceras
Taxonomy
Calygirtyoceras was named by Korn et al. (1999). Its type is Calygirtyoceras darkaouaense.
It was assigned to Girtyoceratinae by Furnish et al. (2009); and to Girtyoceratidae by Korn et al. (1999), Korn (2006), Klug et al. (2006), Klug et al. (2016) and Korn and Sudar (2016).
It was assigned to Girtyoceratinae by Furnish et al. (2009); and to Girtyoceratidae by Korn et al. (1999), Korn (2006), Klug et al. (2006), Klug et al. (2016) and Korn and Sudar (2016).
Species
C. arcticum, C. confusionense, C. darkaouaense (type species), C. moorei, C. platyforme, C. zrigatense
Synonymy list
| Year | Name and author |
|---|---|
| 1999 | Calygirtyoceras Korn et al. p. 353 |
| 2006 | Calygirtyoceras Klug et al. p. 16 |
| 2006 | Calygirtyoceras Korn |
| 2009 | Calygirtyoceras Furnish et al. p. 44 |
| 2016 | Calygirtyoceras Klug et al. p. 6 |
| 2016 | Calygirtyoceras Korn and Sudar p. 198 |
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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. †Calygirtyoceras Korn et al. 1999
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†Calygirtyoceras arcticum Gordon 1957
†Calygirtyoceras confusionense Korn and Titus 2011
†Calygirtyoceras darkaouaense Korn et al. 1999
†Calygirtyoceras moorei Nicolaus 1963
†Calygirtyoceras platyforme Moore 1946
†Calygirtyoceras zrigatense Korn and Ebbighausen 2006
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 4 | 15.0 | 9.70 | 20.8 | 16.0 | 4.76 | |
| shell diameter | 4 | 34.5 | 21.3 | 45.0 | 38.4 | 10.1 | |
| shell inflation | 4 | 9.84 | 6.30 | 12.8 | 10.8 | 2.81 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Asbian or 340.00000 to 336.00000 Ma
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Asbian | Serbia and Montenegro | C. sp. (177512) | |
| Asbian | USA (Utah) | C. arcticum (134501 134502 134609 134610) C. confusionense (134505 134510) C. confusionense, C. arcticum (134499) C. sp., C. confusionense, C. arcticum (134615) | |
| Asbian | Morocco | C. darkaouaense (177528 177536) C. zrigatense (61436) | |
| Asbian | USA (Nevada) | C. arcticum (134647) |