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Isochnus

Insecta - Coleoptera - Curculionidae

Taxonomy
Isochnus was named by Thomson (1859). It is extant.

It was assigned to Rhamphina by Alonso-Zarazaga and Lyal (1999).

Synonymy list
YearName and author
1859Isochnus Thomson
1999Isochnus Alonso-Zarazaga and Lyal

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
EcdysozoaAguinaldo et al. 1997
Panarthropoda
phylumArthropodaGravenhorst 1843
Deuteropoda
Mandibulata
PancrustaceaZrzavý and Štys 1997
AltocrustaceaRegier et al. 2010
superclassAllotriocarida
Athalassocarida
LabiocaridaSchwentner et al. 2017
superclassHexapodaLatreille 1825
Cercofilata
classInsecta
Dicondylia
Paranotalia
RankNameAuthor
subclassPterygota()
NeopterygotaCrampton 1924
infraclassNeopteraMartynov 1923
Holometabola
Aparaglossata
Neuropteriformia
Coleopterida
orderColeoptera
Mesocoleoptera
Metacoleoptera
suborderPolyphagaEmery 1886
infraorderCucujiformiaLameere 1938
Phytophaga
superfamilyCurculionoidea
familyCurculionidae()
subfamilyCurculioninae
tribeRhamphiniRafinesque 1815
subtribeRhamphinaRafinesque 1815
genusIsochnusThomson 1859

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.

G. Isochnus Thomson 1859
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Isochnus arcticus Korotyaev 1977
Isochnus rufipes Le Conte 1876
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: Kiessling 2004, Bush and Bambach 2015

Age range

Maximum range based only on fossils: base of the Late/Upper Miocene to the top of the Late/Upper Pleistocene or 11.63000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 5.333 Ma

Collections (11 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Miocene11.63 - 5.333Russian Federation I. sp. (113713 153434)
Gelasian2.58 - 1.8Greenland I. sp. (160144)
Early/Lower Pleistocene2.58 - 0.774Russian Federation I. sp. 2, I. arcticus (163069)
Late/Upper Pleistocene0.129 - 0.0117USA (Washington) I. rufipes (167662)
Late/Upper Pleistocene0.129 - 0.0117Russian Federation I. arcticus (153441 153442 153443 153444 153445 173216)