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Megasternini

Insecta - Coleoptera - Hydrophilidae

Taxonomy
Megasternini was named by Mulsant (1844). It is extant. Its type is Megasternum.

It was assigned to Sphaeridiinae by Bouchard et al. (2011), Short and Fikáček (2013), Webster (2016).

Subtaxa
Cercyon, Cryptopleurum, Megasternum (type genus)

Synonymy list
YearName and author
1844Megasternini Mulsant
2011Megasternini Bouchard et al.
2013Megasternini Short and Fikáček p. 744
2016Megasternini Webster p. 408

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—EcdysozoaAguinaldo et al. 1997
—Panarthropoda
phylumArthropodaLatreille 1829
—Deuteropoda
—Mandibulata
—PancrustaceaZrzavý and Štys 1997
—AltocrustaceaRegier et al. 2010
superclassAllotriocarida
—Athalassocarida
—LabiocaridaSchwentner et al. 2017
superclassHexapodaLatreille 1825
—Cercofilata
classInsecta
—Dicondylia
RankNameAuthor
—Paranotalia
subclassPterygota()
—NeopterygotaCrampton 1924
infraclassNeopteraMartynov 1923
—Holometabola
—Aparaglossata
—Neuropteriformia
—Coleopterida
orderColeoptera
—Mesocoleoptera
—Metacoleoptera
suborderPolyphagaEmery 1886
infraorderStaphyliniformia
superfamilyHydrophiloidea
familyHydrophilidae
subfamilySphaeridiinae()
tribeMegasterniniMulsant 1844
tribeMegasterniniMulsant 1844

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.

Tr. Megasternini Mulsant 1844
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G. Cercyon Leach 1817
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Cercyon analis Paykull 1798
Cercyon herceus Smetana 1978
Cercyon luniger Mannerheim 1853
Cercyon marinus Thomson 1853
Cercyon melanocephalus Linnaeus 1758
Cercyon pygmaeus Illiger 1801
Cercyon sternalis Sharp 1918
†Cercyon terrigena Scudder 1879
Cercyon tristis Illiger 1801
Cercyon ustulatus Preyssler 1790
G. Cryptopleurum Mulsant 1844
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Cryptopleurum crenatum Kugelann 1794
Cryptopleurum minutum Fabricius 1775
G. Megasternum Mulsant 1844
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Megasternum obscurum Marsham 1802
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: chitinc
Environment: terrestrialc
Locomotion: actively mobilep
Created: 2017-04-17 09:56:18
Modified: 2017-04-17 09:56:18
Source: c = class, p = phylum
References: Bush and Bambach 2015, Kiessling 2004

Age range

Maximum range based only on fossils: base of the Ypresian to the top of the Late/Upper Pleistocene or 56.00000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 48.07 Ma

Collections (25 total)


Time interval Ma Country or state Original ID and collection number
Ypresian56.0 - 48.07Canada (British Columbia) Cercyon terrigena (122190)
Gelasian2.58 - 1.8Greenland Megasternum obscurum (160166)
Early/Lower Pleistocene2.58 - 0.774Russian Federation Cercyon sp. (163069)
Middle Pleistocene0.774 - 0.129United Kingdom Cercyon analis (168269) Cercyon melanocephalus, Megasternum boletophagum (168266 168267) Cercyon pygmaeus, Cercyon sternalis (168270) Cercyon sp., Cercyon sternalis (168272) Cercyon sp., Cercyon ustulatus, Cercyon sternalis, Megasternum boletophagum (168264) Cercyon sp., Megasternum boletophagum (168265) Cercyon sternalis, Megasternum boletophagum (168271) Cryptopleurum minutum, Cercyon analis, Megasternum boletophagum (168268)
Middle Pleistocene0.774 - 0.129United Kingdom (Warwickshire) Cercyon sp. (169389) Cercyon sp., Cryptopleurum crenatum (169391)
Late/Upper Pleistocene0.129 - 0.0117USA (Wisconsin) Cercyon sp., Cercyon herceus (169406)
Late/Upper Pleistocene0.129 - 0.0117Russian Federation (Astrakhan) Cercyon marinus, Cercyon tristis (125794)
Late/Upper Pleistocene0.129 - 0.0117USA (Washington) Cercyon luniger (167662) Cercyon sp. (157092)
Late/Upper Pleistocene0.129 - 0.0117United Kingdom (Worcestershire) Cercyon spp., Cercyon tristis, Cercyon melanocephalus, Cercyon ustulatus, Cryptopleurum minutum (163070)
Late/Upper Pleistocene0.129 - 0.0117United Kingdom (England) Cercyon tristis (164904 164905 164906 164908 164920 164921)