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Clavagnostus trispinus
Taxonomy
Clavagnostus trispinus was named by Zhou and Yang (1977) [Zhou and Yang in Zhou, Liu, Mong and Sun, 1977]. It is not extant.
Synonymy list
| Year | Name and author |
|---|---|
| 1977 | Clavagnostus trispinus Zhou and Yang |
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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 trispinus Zhou and Yang 1977
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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, Whittington et al. 1997 | |||||
Age range: Ayusokkanian or 499.50000 to 497.00000 Ma
Collections (15 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Cambrian | India | Clavagnostus trispinus (114635 114663) | |
| Wangcunian | China (Hunan) | Clavagnostus trispinus (128337 128339) | |
| Guzhangian | China (Hunan) | Clavagnostus trispinus (49168 49172 49175 49176 49295 128365) | |
| Ayusokkanian | Kazakhstan | Clavagnostus trispinus (118177 118178 118179 118184 118250) |