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Troedssonoceras
Taxonomy
Troedssonoceras was named by Foerste (1928) [Sepkoski's age data: O Cara S Ldov Sepkoski's reference number: 298].
It was assigned to Ormoceratidae by Teichert et al. (1964), Crick (1981); and to Actinocerida by Sepkoski (2002).
It was assigned to Ormoceratidae by Teichert et al. (1964), Crick (1981); and to Actinocerida by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1928 | Troedssonoceras Foerste |
| 1964 | Troedssonoceras Teichert et al. p. 214 |
| 1981 | Troedssonoceras Crick p. 227 |
| 2002 | Troedssonoceras 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. †Troedssonoceras Foerste 1928
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Aberhan et al. 2004, Kiessling 2004 | |||||
Age range: base of the Late/Upper Llanvirn to the top of the Maysvillian or 461.10000 to 449.60000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Llanvirn | China (HeBei) | T. sp. (7988) | |
| Maysvillian | USA (Ohio) | T. sp. (387 388) | |
| Maysvillian - Ashgill | USA (Ohio) | T. sp. (389) |