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Argenna fossilis
Taxonomy
Argenna fossilis was named by Petrunkevitch (1957). Its type specimen is USNM 561977, an exoskeleton, and it is a 3D body fossil. Its type locality is USGS Cenozoic 19057, Mule Canyon, Calico Hills, which is in a Hemingfordian lacustrine - large shale in the Barstow Formation of California.
Synonymy list
| Year | Name and author |
|---|---|
| 1957 | Argenna fossilis Petrunkevitch p. 246 figs. Pl 32, fig 3; text-fig 87 |
| 1962 | Argenna fossilis Pierce and Gibron p. 143 fig. 1A,B |
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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.
†Argenna fossilis Petrunkevitch 1957
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class | |||||
| Reference: Bush and Bambach 2015 | |||||
Age range: Hemingfordian or 18.50000 to 16.30000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Hemingfordian | USA (California) | Argenna fossilis (106431 type locality: 123022 138761) |