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Acheilops
Taxonomy
Acheilops was named by Ulrich (1931) [Sepkoski's age data: Cm Trep-u Sepkoski's reference number: 379]. It is not extant.
It was assigned to Catillicephalidae by Jell and Adrain (2002); and to Ptychopariida by Sepkoski (2002).
It was assigned to Catillicephalidae by Jell and Adrain (2002); and to Ptychopariida by Sepkoski (2002).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1931 | Acheilops Ulrich |
| 2002 | Acheilops Jell and Adrain p. 337 |
| 2002 | Acheilops 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. †Acheilops Ulrich 1931
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Whittington et al. 1997 | |||||
Age range: base of the Trempealeauan to the top of the Sunwaptan or 492.50000 to 487.50000 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Merioneth | USA (Vermont) | A. sp. (6870) | |
| Sunwaptan | Canada (Alberta) | A. montis (54093 54094 81297) | |
| Sunwaptan | USA (New York) | A. masonensis (85185 85187) | |
| Trempealeauan | USA (Texas) | A. masonensis (216016 219648 219656) | |
| Trempealeauan | Canada (Newfoundland and Labrador) | A. sp. (105870) | |
| Trempealeauan | USA (Wisconsin) | A. sp. (256) |