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Harpina (disused)
Taxonomy
Harpina was named by Whittington (1959).
It was reranked as the order Harpida by Adrain (2011); it was reranked as the order Harpetida by Ebach and McNamara (2002), McNamara et al. (2009) and Beech and Lamsdell (2021).
It was assigned to Ptychopariida by Harrington et al. (1959), Fortey (1990) and Sepkoski (1998); and to Trilobita by Ebach and McNamara (2002), McNamara et al. (2009), Adrain (2011) and Beech and Lamsdell (2021).
It was reranked as the order Harpida by Adrain (2011); it was reranked as the order Harpetida by Ebach and McNamara (2002), McNamara et al. (2009) and Beech and Lamsdell (2021).
It was assigned to Ptychopariida by Harrington et al. (1959), Fortey (1990) and Sepkoski (1998); and to Trilobita by Ebach and McNamara (2002), McNamara et al. (2009), Adrain (2011) and Beech and Lamsdell (2021).
Synonymy list
| Year | Name and author |
|---|---|
| 1959 | Harpina Harrington et al. p. O415 |
| 1959 | Harpina Whittington |
| 1990 | Harpina Fortey p. 562 |
| 1998 | Harpina Sepkoski |
| 2002 | Harpetida Ebach and McNamara |
| 2009 | Harpetida McNamara et al. p. 14 |
| 2011 | Harpida Adrain p. 107 |
| 2021 | Harpetida Beech and Lamsdell p. 2220 |
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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.
Subor. †Harpina Whittington 1959
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. A. Fortey 1990 | Libristoma having small eyes placed anteriorly relative to glabella; cephalon broadly convex (sag. tr.) with long preglabellar area, and often a brim, with stout genal spines or genal prolongations of the brim; free cheeks narrow (tr.) or lost altogether, fused together; thoracic segments numerous (12 or more) and characteristically narrow (sag.) with long pleurae in contact along their length; pygidium relatively small and often transverse. |