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Arcanoceras
Taxonomy
Arcanoceras was named by Ruzhencev (1965) [Sepkoski's age data: C Vise-u C Serp-l Sepkoski's reference number: 302,304]. It is not extant. Its type is Girtyoceras burmai.
It was assigned to Goniatitida by Sepkoski (2002); and to Eogonioloboceratidae by Titus (2000), Korn (2006), Furnish et al. (2009).
It was assigned to Goniatitida by Sepkoski (2002); and to Eogonioloboceratidae by Titus (2000), Korn (2006), Furnish et al. (2009).
Synonymy list
| Year | Name and author |
|---|---|
| 1965 | Arcanoceras Ruzhencev |
| 2000 | Arcanoceras Titus p. 23 |
| 2002 | Arcanoceras Sepkoski |
| 2006 | Arcanoceras Korn |
| 2009 | Arcanoceras Furnish et al. p. 50 |
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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. †Arcanoceras Ruzhencev 1965
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†Arcanoceras burmai Miller and Downs 1950
†Arcanoceras furnishi Saunders 1964
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Invalid names: Nomismoceras marshallense Gordon 1964 [synonym]
†Arcanoceras macallisteri Gordon, Jr. 1964
†Arcanoceras praecox Ruzhentsev 1966
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 5 | 7.61 | 2.90 | 32.2 | 6.60 | 12.0 | |
| shell diameter | 5 | 14.2 | 6.30 | 58.0 | 12.0 | 21.5 | |
| shell inflation | 5 | 1.62 | 1.00 | 3.50 | 1.60 | 1.03 |
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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 Arnsbergian or 335.90000 to 323.60000 Ma
Collections (13 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Brigantian | Kazakhstan | A. burmai (166868 166871 166872) | |
| Pendleian | Kazakhstan | A. burmai (166865 166874 166875 166881 166882) | |
| Pendleian | USA (Arkansas) | Nomismoceras marshallense (157685) | |
| Arnsbergian | Kazakhstan | A. burmai (166863) | |
| Arnsbergian | Russian Federation (Orenburg) | A. burmai (166934) | |
| Arnsbergian | Russian Federation (Bashkortostan) | A. burmai (166954) | |
| Arnsbergian | USA (California) | Anthracoceras macallisteri (217143) |