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Isochnus
Taxonomy
Isochnus was named by Thomson (1859). It is extant.
It was assigned to Rhamphina by Alonso-Zarazaga and Lyal (1999).
It was assigned to Rhamphina by Alonso-Zarazaga and Lyal (1999).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1859 | Isochnus Thomson |
| 1999 | Isochnus Alonso-Zarazaga and Lyal |
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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.
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
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| 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
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 Miocene | Russian Federation | I. sp. (113713 153434) | |
| Gelasian | Greenland | I. sp. (160144) | |
| Early/Lower Pleistocene | Russian Federation | I. sp. 2, I. arcticus (163069) | |
| Late/Upper Pleistocene | USA (Washington) | I. rufipes (167662) | |
| Late/Upper Pleistocene | Russian Federation | I. arcticus (153441 153442 153443 153444 153445 173216) |