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Hydrochinae
Taxonomy
Hydrochinae was named by Thomson (1859). It is extant.
It was reranked as the family Hydrochidae by Crowson (1981), Short and Fikáček (2013) and Cai et al. (2022).
It was assigned to Hydrophilidae by Lawrence and Newton (1995) and Bouchard et al. (2011); and to Hydrophiloidea by Crowson (1981), Short and Fikáček (2013) and Cai et al. (2022).
It was reranked as the family Hydrochidae by Crowson (1981), Short and Fikáček (2013) and Cai et al. (2022).
It was assigned to Hydrophilidae by Lawrence and Newton (1995) and Bouchard et al. (2011); and to Hydrophiloidea by Crowson (1981), Short and Fikáček (2013) and Cai et al. (2022).
Subtaxa
Synonymy list
Year | Name and author |
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1859 | Hydrochinae Thomson |
1981 | Hydrochidae Crowson p. 694 |
1995 | Hydrochinae Lawrence and Newton, Jr. |
2011 | Hydrochinae Bouchard et al. |
2013 | Hydrochidae Short and Fikáček |
2022 | Hydrochidae 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. Hydrochinae Thomson 1859
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G. Hydrochus Germar 1824
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†Hydrochus amictus Scudder 1890
Hydrochus elongatus Schaller 1783
†Hydrochus relictus Scudder 1890
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 Bridgerian to the top of the Late/Upper Pleistocene or 50.30000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 46.2 Ma
Minimum age of oldest fossil (stem group age): 46.2 Ma
Collections (4 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Bridgerian | USA (Wyoming) | Hydrochus relictus (122090) | |
Middle Pleistocene | United Kingdom | Hydrochus elongatus (168270 168271) | |
Late/Upper Pleistocene | USA (Ohio) | Hydrochus amictus (152574) |