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Hadragnostus quadratiformis
Taxonomy
Hadragnostus quadratiformis was named by Ergaliev and Ergaliev (2008). It is not extant. Its type locality is Kyrshabakty River, 1346-10, which is in an Ayusokkanian slope lime mudstone in the Zhumabai Formation of Kazakhstan.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2008 | Hadragnostus quadratiformis Ergaliev and Ergaliev |
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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.
†Hadragnostus quadratiformis Ergaliev and Ergaliev 2008
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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: Hendy 2009, Kiessling 2004 | |||||
Age range: base of the Zhanaarykian to the top of the Ayusokkanian or 503.00000 to 497.00000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Zhanaarykian | Kazakhstan | Hadragnostus quadratiformis (9959 118102) | |
| Ayusokkanian | Kazakhstan | Hadragnostus quadratiformis (9945 type locality: 9947) |