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Pachydiscus (Pachydiscus) kamishakensis
Taxonomy
Pachydiscus (Pachydiscus) kamishakensis was named by Jones (1963). Its type specimen is USNM 131193, a shell, and it is a 3D body fossil. Its type locality is USGS Loc. 16398, Matanuska Valley-Nelchina [Matanuska Fm], which is in a Campanian marine siltstone/shale in the Matanuska Formation of Alaska.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1963 | Pachydiscus (Pachydiscus) kamishakensis Jones p. 35 figs. pl. 16, figs. 4-6 |
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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.
†Pachydiscus (Pachydiscus) kamishakensis Jones 1963
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 8 | 64.3 | 22.0 | 210.0 | 59.5 | 61.2 | |
| shell diameter | 8 | 150.1 | 54.0 | 501.0 | 141.0 | 146.4 | |
| shell inflation | 8 | 38.7 | 16.0 | 124.0 | 38.5 | 35.7 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Late/Upper Campanian to the top of the Campanian or 83.50000 to 72.10000 Ma
Collections (16 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Campanian | USA (Alaska) | Pachydiscus kamishakensis (88818 88821) | |
| Late/Upper Campanian | USA (Alaska) | Pachydiscus kamishakensis (63935 type locality: 88816 158217 158227 158233 158236 158237 158241 158274 158275 158312 158374 158377 158378) |