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Holocephalina
Taxonomy
Holocephalina was named by Salter (1864) [Sepkoski's age data: Cm uMid-l Cm uMid-m Sepkoski's reference number: 80,378]. It is not extant. It is the type genus of Holocephalinidae.
It was assigned to Conocoryphidae by Resser (1936) and Yang et al. (1993); to Ptychopariida by Sepkoski (2002); and to Holocephalinidae by Jell and Adrain (2002).
It was assigned to Conocoryphidae by Resser (1936) and Yang et al. (1993); to Ptychopariida by Sepkoski (2002); and to Holocephalinidae by Jell and Adrain (2002).
Species
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1864 | Holocephalina Salter |
| 1872 | Carausia Hicks |
| 1936 | Holocephalina Resser p. 21 |
| 1993 | Holocephalina Yang et al. |
| 2002 | Holocephalina Jell and Adrain p. 384 |
| 2002 | Holocephalina 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. †Holocephalina Salter 1864
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†Holocephalina chinensis Yang et al. 1993
†Holocephalina linnarssoni Grönwall 1902
†Holocephalina trapezia Yang et al. 1993
Invalid names: Carausia Hicks 1872 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. E. Resser 1936 | A rather small trilobite with convex cephalon. Gla- bella distinctly marked by shallow dorsal furrow. Marginal furrow alsoshallow; thoraxandpygidiumtypicalofthefamily. |
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 Taijangian to the top of the Menevian or 509.00000 to 499.50000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Taijangian | China (Henan) | H. chinensis, H. trapezia (127072) | |
| Menevian | United Kingdom (Wales) | H. primordialis (193783) |