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Taxonomy
Cardium shinjiensis was named by Yokoyama (1923) [DISTRIBUTION: Miocene; Japan.]. Its type specimen is UMUT CM24580, a shell, and it is not a trace fossil.
It was recombined as Clinocardium shinjiense by Kamada (1962); it was recombined as Ciliatocardium shinjiense by Kafanov (2002).
It was recombined as Clinocardium shinjiense by Kamada (1962); it was recombined as Ciliatocardium shinjiense by Kafanov (2002).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1923 | Cardium shinjiensis Yokoyama p. 7 figs. pl. 2, figs. 6a, b |
| 1962 | Clinocardium shinjiense Kamada p. 105 |
| 2002 | Ciliatocardium shinjiense Kafanov p. 10 |
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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.
†Ciliatocardium shinjiense Yokoyama 1923
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Todd 2001, Aberhan et al. 2004 | |||||
Age range: base of the Early/Lower Miocene to the top of the Serravallian or 23.04000 to 11.63000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Miocene | Russian Federation | Ciliatocardium shinjiense (70448) | |
| Middle Miocene | Japan (Shimane) | Clinocardium shinjiense (102978) | |
| Middle Miocene | Japan | Clinocardium shinjiense (70295 70301 70302) | |
| Serravallian | Japan | Clinocardium shinjiense (44962) |