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Calyptaulax callicephalus
Taxonomy
Phacops callicephalus was named by Hall (1847). It is not extant.
It was recombined as Dalmania callicephala by Hall (1859); it was recombined as Pterygometopus callicephalus by Clarke (1894); it was recombined as Calliops callicephalus by Delo (1935); it was recombined as Calliops callicephala by Allen and Lester (1957); it was recombined as Calyptaulax callicephala by Shaw (1968); it was recombined as Calyptaulax callicephalus by Brett et al. (1999).
It was recombined as Dalmania callicephala by Hall (1859); it was recombined as Pterygometopus callicephalus by Clarke (1894); it was recombined as Calliops callicephalus by Delo (1935); it was recombined as Calliops callicephala by Allen and Lester (1957); it was recombined as Calyptaulax callicephala by Shaw (1968); it was recombined as Calyptaulax callicephalus by Brett et al. (1999).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1847 | Phacops callicephalus Hall p. 247 |
| 1859 | Dalmania callicephala Hall p. 73 |
| 1894 | Pterygometopus callicephalus Clarke p. 731 |
| 1935 | Calliops callicephalus Delo p. 417 |
| 1957 | Calliops callicephala Allen and Lester |
| 1968 | Calyptaulax callicephala Shaw p. 87 |
| 1999 | Calyptaulax callicephalus Brett et al. p. 301 figs. 8.8 |
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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.
†Calyptaulax callicephalus Hall 1847
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, subo = suborder, c = class | |||||
| References: Harrington et al. 1959, Aberhan et al. 2004, Hendy 2009, Fortey and Owens 1999 | |||||
Age range: base of the Middle Ordovician to the top of the Edenian or 470.00000 to 450.20000 Ma
Collections (30 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Ordovician | USA (New York) | Calyptaulax callicephalus (181527) | |
| Caradoc | USA (Virginia) | Calliops callicephalus (34247 34248 34249 34250 34251 34252 34268 34272 34273 34276) | |
| Caradoc | USA (Georgia) | Calliops callicephala (32823 32824 32825 32826 32832) | |
| Turinian | Canada (Ontario) | Calliops callicephalus (26174) | |
| Mohawkian | USA (New York) | Calyptaulax callicephalus (104605 104625) | |
| Kirkfieldian | Canada (Ontario) | Calliops callicephalus (26192) | |
| Shermanian | USA (Illinois) | Pterygometopus callicephalus (154952) | |
| Trentonian | USA (Missouri) | Pterygometopus callicephalus (89024) | |
| Chatfieldian | USA (New York) | Calyptaulax callicephalus (181519 181522 181526) | |
| Chatfieldian | Canada (Ontario) | Calliops callicephalus (26268 26270 26271 26273) | |
| Edenian | Canada (Quebec) | Calyptaulax callicephalus (163865) |