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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Pterocephalops
Taxonomy
Pterocephalops was named by Rasetti (1944) [Sepkoski's age data: Cm Dres-u Sepkoski's reference number: 494]. It is not extant. Its type is Pterocephalops acrophthalma.
It was assigned to Dikelocephalidae by Jell and Adrain (2002); and to Asaphida by Sepkoski (2002).
It was assigned to Dikelocephalidae by Jell and Adrain (2002); and to Asaphida by Sepkoski (2002).
Species
P. acrophthalma (type species)
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1944 | Pterocephalops Rasetti p. 254 |
| 2002 | Pterocephalops Jell and Adrain p. 436 |
| 2002 | Pterocephalops 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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Aberhan et al. 2004, Whittington et al. 1997, Hendy et al. 2009 | |||||
Age range: base of the Steptoean to the top of the Trempealeauan or 497.00000 to 485.40000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Steptoean | USA (Vermont) | P. tuberculineata (8977) | |
| Dresbachian | USA (Virginia) | P. acrophthalma (62204 62205) | |
| Trempealeauan | Canada (Quebec) | P. acrophthalma (224148) |