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Stephenaspis
Taxonomy
Stephenaspis was named by Rasetti (1951) [Sepkoski's age data: Cm Tojo-u Sepkoski's reference number: 80]. It is not extant.
It was assigned to Corynexochida by Sepkoski (2002); and to Zacanthoididae by Jell and Adrain (2002) and Sundberg and McCollum (2003).
It was assigned to Corynexochida by Sepkoski (2002); and to Zacanthoididae by Jell and Adrain (2002) and Sundberg and McCollum (2003).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1951 | Stephenaspis Rasetti |
| 2002 | Stephenaspis Jell and Adrain p. 448 |
| 2002 | Stephenaspis Sepkoski |
| 2003 | Stephenaspis Sundberg and McCollum p. 343 |
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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. †Stephenaspis Rasetti 1951
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†Stephenaspis avitus Palmer 1964
†Stephenaspis highlandensis Sundberg and McCollum 2003
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Aberhan et al. 2004, Hendy 2009, Hendy et al. 2009 | |||||
Collections (10 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Dyeran | USA (Nevada) | S. avitus (96417) | |
| Delamaran | Canada (British Columbia) | S. bispinosa (225262) S. sp. (197) | |
| St Davids | USA (Nevada) | S. highlandensis (50098 50100 50101 50110 50115 50326 50333) |