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Cybisterinae
Taxonomy
Cybistrini was named by Sharp (1880). It is extant.
It was corrected as Cybisterini by Bouchard et al. (2011); it was reranked as the subfamily Cybisterinae by Cai et al. (2022).
It was assigned to Dytiscinae by Nilsson (2001), Bouchard et al. (2011); and to Dytiscidae by Cai et al. (2022).
It was corrected as Cybisterini by Bouchard et al. (2011); it was reranked as the subfamily Cybisterinae by Cai et al. (2022).
It was assigned to Dytiscinae by Nilsson (2001), Bouchard et al. (2011); and to Dytiscidae by Cai et al. (2022).
Synonymy list
| Year | Name and author |
|---|---|
| 1880 | Cybistrini Sharp p. cl |
| 2001 | Cybistrini Nilsson p. 265 |
| 2011 | Cybisterini Bouchard et al. |
| 2022 | Cybisterinae Cai et al. |
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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.
Subfm. Cybisterinae Sharp 1880
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G. Cybister Curtis 1827
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†Cybister agassizi Heer 1862
†Cybister atavus Heer 1862
†Cybister fractus Říha 1974
†Cybister imperfectus Říha 1974
†Cybister mancus Říha 1974
†Cybister rotundatus Říha 1974
G. Megadytes Sharp 1882
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Subg. Megadytes (Paramegadytes) Trémouilles and Bachmann 1980
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Megadytes (Paramegadytes) glaucus Brullé 1837
†Megadytes nicoleti Heer 1862
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Bush and Bambach 2015, Kiessling 2004 | |||||
Age range
Maximum range based only on fossils: base of the MN 3 to the top of the Late/Upper Pleistocene or 20.00000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 16.9 Ma
Minimum age of oldest fossil (stem group age): 16.9 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| MN 3 | Czechia | Cybister sp., Cybister rotundatus (105508) | |
| Middle Miocene | Russian Federation | Cybister fractus (105571) Cybister rotundatus, Cybister imperfectus, Cybister mancus (152089) | |
| Sarmatian | Germany (Baden-Württemberg) | Cybister agassizi, Cybister atavus, Cybister nicoleti (117252) | |
| Sarmatian | Switzerland | Cybister nicoleti (153996) | |
| Pleistocene - Holocene | Cuba (Matanzas) | Cybister sp. (152870) | |
| Middle Pleistocene | United Kingdom | Cybister lateralimarginalis (168266) | |
| Late/Upper Pleistocene | Argentina (Buenos Aires) | Megadytes glaucus (184124) |