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Taxonomy
Westergaardites was named by Troedsson (1937) [Sepkoski's age data: Cm Fran-u Sepkoski's reference number: 484]. It is not extant.
It was assigned to Ptychopariida by Sepkoski (2002); and to Olenidae by Jell and Adrain (2002).
It was assigned to Ptychopariida by Sepkoski (2002); and to Olenidae by Jell and Adrain (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1937 | Westergaardites Troedsson |
| 2002 | Westergaardites Jell and Adrain p. 459 |
| 2002 | Westergaardites Sepkoski |
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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.
G. †Westergaardites Troedsson 1937
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†Westergaardites pelturaeformis Troedsson 1937
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Hendy 2009, Aberhan et al. 2004 | |||||
Age range: base of the Aksaian to the top of the Trempealeauan or 492.80000 to 486.85000 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Franconian | USA (Nevada) | W. sp. (252) | |
| Taoyuanian | China (Hunan) | W. pelturaeformis (126716 126717) | |
| Aksaian | Kazakhstan | W. pelturaeformis (118481 118485 118486 118488) | |
| Trempealeauan | USA (Nevada) | W. sp. (75438) |