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Phacoceras
Taxonomy
Phacoceras was named by Hyatt (1884) [Sepkoski's age data: C Vise-u P Wc Sepkoski's reference number: 524]. Its type is Nautilus oxystomus.
It was assigned to Centroceratidae by Teichert et al. (1964); and to Nautilida by Sepkoski (2002).
It was assigned to Centroceratidae by Teichert et al. (1964); and to Nautilida by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1884 | Phacoceras Hyatt |
| 1964 | Phacoceras Teichert et al. p. 432 |
| 2002 | Phacoceras 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.
G. †Phacoceras Hyatt 1884
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†Phacoceras electum Shimanskiy 1967
†Phacoceras oxystomum Phillips 1836
†Phacoceras semirutum Shimanskiy 1967
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 18.3 | 14.0 | 24.0 | 19.0 | 7.07 | |
| shell diameter | 2 | 35.2 | 31.0 | 40.0 | 35.5 | 6.36 | |
| shell inflation | 2 | 7.94 | 7.00 | 9.00 | 8.00 | 1.41 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||