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Acmarhachis acuta
Taxonomy
Homagnostus acutus was named by Kobayashi (1938). It is not extant.
It was recombined as Pseudagnostus acutus by Palmer (1960); it was recombined as Acmarhachis acuta by Rasetti (1961).
It was recombined as Pseudagnostus acutus by Palmer (1960); it was recombined as Acmarhachis acuta by Rasetti (1961).
Synonymy list
| Year | Name and author |
|---|---|
| 1938 | Homagnostus acutus Kobayashi |
| 1960 | Pseudagnostus acutus Palmer p. 62 figs. pl. 4 fig. 10-12 |
| 1961 | Acmarhachis acuta Rasetti p. 109 |
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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.
†Acmarhachis acuta Kobayashi 1938
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order | |||||
| References: Kiessling 2004, Hendy 2009 | |||||
Age range: Steptoean or 497.00000 to 493.50000 Ma
Collections (15 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Steptoean | USA (Nevada) | Pseudagnostus acutus (75270) | |
| Dresbachian | USA (Virginia) | Acmarhachis acuta (62204 62205) | |
| Dresbachian | Canada (Yukon) | Acmarhachis acuta (55217 55220 55223 55224 55225 55231 55232 55234 55277 55278 55281 55282) |