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Quadratia hirsutiformis
Taxonomy
Productus hirsutiforme was named by Walcott (1884).
It was recombined as Productella hirsutiformis by Sutton (1938); it was recombined as Quadratia hirsutiformis by Muir-Wood and Cooper (1960).
It was recombined as Productella hirsutiformis by Sutton (1938); it was recombined as Quadratia hirsutiformis by Muir-Wood and Cooper (1960).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1884 | Productus hirsutiforme Walcott p. 133 figs. Plate ii, figs. 10,10 a |
| 1938 | Productella hirsutiformis Sutton p. 551 |
| 1960 | Quadratia hirsutiformis Muir-Wood and Cooper p. 162 figs. Pl 39, figs 1-13 |
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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.
†Quadratia hirsutiformis Walcott 1884
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013, Williams et al. 2000 | |||||
Age range: Meramecian or 342.90000 to 335.40000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Meramecian | USA (Nevada) | Quadratia hirsutiformis (62674) | |
| Meramecian | USA (Idaho) | Quadratia hirsutiformis (12807 12814) |