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Trachysycon
Taxonomy
Trachysycon was named by Zittel (1878) [Sepkoski's age data: K Albi-u K Sn]. It is not extant.
It was assigned to Lithistida by Sepkoski (2002); and to Phymatellinae by Finks et al. (2004).
It was assigned to Lithistida by Sepkoski (2002); and to Phymatellinae by Finks et al. (2004).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1878 | Trachysycon Zittel |
| 2002 | Trachysycon Sepkoski |
| 2004 | Trachysycon Finks et al. |
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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. †Trachysycon Zittel 1878
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†Trachysycon muricatum Roemer 1864
†Trachysycon nodosum Hinde 1883
†Trachysycon sulcatum Hinde 1883
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Whittington et al. 1997 | |||||
Age range: base of the Late/Upper Albian to the top of the Santonian or 106.30000 to 83.60000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Albian | United Kingdom (England) | T. nodosum (153918) | |
| Coniacian - Santonian | Germany (Niedersachsen) | T. muricatum (110612 110613) |