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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Dytremacephalus asperaxis
Taxonomy
Dytremacephalus asperaxis was named by Palmer (1965). It is not extant. Its type specimen is USNM 141761, a cephalon/head (cranidium).
Synonymy list
| Year | Name and author |
|---|---|
| 1965 | Dytremacephalus asperaxis Palmer p. 85 figs. Pl. 18, fig. 10 |
| 2002 | Dytremacephalus asperaxis Jell and Adrain p. 85 figs. Pl. 18, fig. 10 |
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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.
†Dytremacephalus asperaxis Palmer 1965
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Hendy 2009 | |||||
Age range: Steptoean or 497.00000 to 493.50000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Steptoean | USA (Nevada and Utah) | Dytremacephalus asperaxis (74910) | |
| Steptoean | USA (Nevada) | Dytremacephalus asperaxis (110447) | |
| Steptoean | USA (Utah) | Dytremacephalus asperaxis (240239) |