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Clavagnostus spinosus
Taxonomy
Tomorhachis spinosa was named by Resser (1938). It is not extant.
It was recombined as Clavagnostus spinosus by Peng and Robison (2000).
It was recombined as Clavagnostus spinosus by Peng and Robison (2000).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1938 | Tomorhachis spinosa Resser |
| 1946 | Clavagnostus sulcatus Westergard |
| 1982 | Acanthagnostus longispinus Qian |
| 1989 | Clavagnostus longispinus Sun |
| 2000 | Clavagnostus spinosus Peng and Robison |
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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.
†Clavagnostus spinosus Resser 1938
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Invalid names: Clavagnostus longispinus Qian 1982 [synonym], Clavagnostus sulcatus Westergard 1946 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order | |||||
| References: Whittington et al. 1997, Kiessling 2004, Hendy 2009 | |||||
Age range: base of the Guzhangian to the top of the Ayusokkanian or 500.50000 to 497.00000 Ma
Collections (12 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Menevian | USA (Utah) | Clavagnostus spinosus (230681) | |
| Guzhangian | China (Yunnan) | Clavagnostus spinosus (219647) | |
| Guzhangian | China (Hunan) | Clavagnostus sulcatus (128931) | |
| Guzhangian | China (Shandong) | Acanthagnostus longispinus (124885) Clavagnostus longispinus (126818) | |
| Ayusokkanian | Kazakhstan | Clavagnostus spinosus (118177 118178 118184 118191 118236 118237 118241) |