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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Aspidagnostus primitivus
Taxonomy
Aspidagnostus primitivus was named by Yang et al. (1993). It is not extant. Its type locality is Xiuzigou, bed 10a, which is in a Wangcunian slope limestone/shale in the Xijiadian Formation of China.
Synonymy list
| Year | Name and author |
|---|---|
| 1993 | Aspidagnostus primitivus Yang et al. |
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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.
†Aspidagnostus primitivus Yang et al. 1993
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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: Whittington et al. 1997, Kiessling 2004, Hendy 2009 | |||||
Age range: Wangcunian or 504.50000 to 497.00000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wangcunian | China (Henan) | Aspidagnostus primitivus (type locality: 127075) |