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Alaskadiscus disculus
Taxonomy
Bellerophon disculus was named by Billings (1860). It is not a trace fossil.
It was recombined as Oxydiscus disculus by Ulrich and Scofield (1897); it was recombined as Tropidodiscus disculus by Wilson (1951) and Liberty (1969); it was recombined as Alaskadiscus disculus by Wagner (2023).
It was recombined as Oxydiscus disculus by Ulrich and Scofield (1897); it was recombined as Tropidodiscus disculus by Wilson (1951) and Liberty (1969); it was recombined as Alaskadiscus disculus by Wagner (2023).
Synonymy list
| Year | Name and author |
|---|---|
| 1860 | Bellerophon disculus Billings p. 168 fig. 11 |
| 1897 | Oxydiscus disculus Ulrich and Scofield pp. 913 - 914 |
| 1951 | Tropidodiscus disculus Wilson pp. 32 - 33 figs. pl. 4 f. 24-25 |
| 1969 | Tropidodiscus disculus Liberty |
| 2023 | Alaskadiscus disculus Wagner p. 490 |
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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.
†Alaskadiscus disculus Billings 1860
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: superf = superfamily, o = order, c = class | |||||
| References: Hendy et al. 2009, Kiessling 2004 | |||||
Age range: Chatfieldian or 453.80000 to 451.00000 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Caradoc | Canada (Ontario) | Tropidodiscus disculus (26276) | |
| Chatfieldian | Canada (Quebec) | Tropidodiscus disculus (185477) | |
| Chatfieldian | Canada (Ontario) | Tropidodiscus disculus (26263 26268 26270 26271 26277) |