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Aphelaspis brachyphasis
Taxonomy
Aphelaspis brachyphasis was named by Palmer (1962). Its type specimen is USNM 143168, a cephalon/head (cranidium), and it is a 3D body fossil. Its type locality is Steptoean Stage, Duck Creek, Nevada - Palmer 1999, which is in the Steptoean/Dolgellian of shale/limestone the Dunderberg Formation Nevada.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1962 | Aphelaspis brachyphasis Palmer pp. F-33 figs. Pl. 4, fig. 1 |
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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.
†Aphelaspis brachyphasis Palmer 1962
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class | |||||
| References: Hendy 2009, Whittington et al. 1997, Aberhan et al. 2004 | |||||
Age range: base of the Steptoean to the top of the Dolgellian or 497.00000 to 485.40000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Dresbachian | Canada (Yukon) | Aphelaspis brachyphasis (55223 55278) | |
| Dresbachian | USA (Nevada) | Aphelaspis brachyphasis (75741 75742) | |
| Steptoean - Dolgellian | USA (Nevada) | Aphelaspis brachyphasis (type locality: 10506) |