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Cosmacanthus
Taxonomy
Cosmacanthus was named by Agassiz (1845) [Sepkoski's age data: D Fras , D Fame Sepkoski's reference number: 521]. It is not extant.
It was assigned to Ichthyodorulites by Hay (1902); to Heterodontidae by Jordan and Hanibal (1923); and to Arthrodira by Denison (1978) and Sepkoski (2002).
It was assigned to Ichthyodorulites by Hay (1902); to Heterodontidae by Jordan and Hanibal (1923); and to Arthrodira by Denison (1978) and Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1845 | Cosmacanthus Agassiz |
| 1902 | Cosmacanthus Hay p. 330 |
| 1923 | Cosmacanthus Jordan and Hanibal p. 30 |
| 1978 | Cosmacanthus Denison |
| 2002 | Cosmacanthus 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. †Cosmacanthus Agassiz 1845
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†Cosmacanthus bullatus Saint John and Worthen 1875
†Cosmacanthus carinatus Davis 1883
†Cosmacanthus malcolmsoni Agassiz 1844
†Cosmacanthus marginalis Davis 1883
†Cosmacanthus priscus Mcoy 1848
†Cosmacanthus stellatus Saint John and Worthen 1875
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, subp = subphylum | |||||
| Reference: Carroll 1988 | |||||
Age range: Mississippian or 358.90000 to 323.20000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Mississippian | United Kingdom | C. marginalis, C. carinatus, Nemacanthus priscus (137333) |