| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Opoa
Taxonomy
Opoa was named by Lane (1972) [Sepkoski's age data: S Wenl-u]. It is not extant.
It was assigned to Meroperixinae by Kobayashi and Hamada (1974); to Ptychopariida by Sepkoski (2002); and to Styginidae by Jell and Adrain (2002).
It was assigned to Meroperixinae by Kobayashi and Hamada (1974); to Ptychopariida by Sepkoski (2002); and to Styginidae by Jell and Adrain (2002).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1972 | Opoa Lane |
| 1974 | Opoa Kobayashi and Hamada p. 68 |
| 2002 | Opoa Jell and Adrain p. 414 |
| 2002 | Opoa 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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Whittington et al. 1997, Hendy et al. 2009, Aberhan et al. 2004 | |||||
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Llandovery - Wenlock | Greenland | O. adamsi (188494) | |
| Aeronian | Greenland | O. sp. (23053) | |
| Telychian | Canada (Ontario) | O. sp. (77327 77328 77334 77335 77336) | |
| Telychian | Greenland | O. adamsi (23048 188492) | |
| Telychian - Sheinwoodian | USA (Iowa) | O. sp. (26768) | |
| Ludlow | Japan (Skikoku) | O. trinodosa (188692) |