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Lophoceras
Taxonomy
Lophoceras was named by Hyatt (1893) [Sepkoski's age data: C Vise Sepkoski's reference number: 1066].
It was assigned to Eudoceratidae by Hyatt (1894); to Koninckioceratidae by Teichert et al. (1964); and to Nautilida by Sepkoski (2002).
It was assigned to Eudoceratidae by Hyatt (1894); to Koninckioceratidae by Teichert et al. (1964); and to Nautilida by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1893 | Lophoceras Hyatt |
| 1894 | Lophoceras Hyatt p. 537 |
| 1964 | Lophoceras Teichert et al. p. 426 |
| 2002 | Lophoceras 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. †Lophoceras Hyatt 1893
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†Lophoceras bifrons de Koninck 1878
†Lophoceras eichwaldi Shimanskiy 1967
†Lophoceras okense Tzwetaev 1898
†Lophoceras pentagonum Sowerby 1819
†Lophoceras regulus Eichwald 1857
†Lophoceras rossicum Shimansky 1957
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 3 | 43.1 | 35.0 | 57.0 | 40.0 | 11.5 | |
| shell diameter | 3 | 100.4 | 85.0 | 140.0 | 85.0 | 31.8 | |
| shell inflation | 3 | 32.8 | 25.0 | 47.0 | 30.0 | 11.5 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: base of the Brigantian to the top of the Pendleian or 336.00000 to 327.00000 Ma
Collections (10 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Visean | Russian Federation | L. pentagonum (166357) Nautilus regulus (166355) | |
| Brigantian | United Kingdom (England) | L. pentagonum (73420) | |
| Brigantian | Russian Federation | L. bifrons (166358 166359 166360 166361) L. rossicum (166354) | |
| Pendleian | Russian Federation | L. rossicum, L. eichwaldi, L. okense (166306) | |
| Serpukhovian | Russian Federation | Coelonautilus okensis (166484) |