| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Asaphus alacer was named by Billings (1866).
It was recombined as Brachyaspis alacer by Twenhofel (1928).
It was recombined as Brachyaspis alacer by Twenhofel (1928).
Synonymy list
| Year | Name and author |
|---|---|
| 1866 | Asaphus alacer Billings p. 26 fig. 9a |
| 1928 | Brachyaspis alacer Twenhofel p. 323 figs. Plate LVII, figures 10, 11, 12 |
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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.
†Brachyaspis alacer Billings 1866
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Hendy et al. 2009, Aberhan et al. 2004, Hendy 2009 | |||||
Age range: Richmondian or 449.60000 to 445.50000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Richmondian | Canada (Quebec) | Brachyaspis alacer (63675) |