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Taxonomy
Cardium dickersoni was named by Clark (1918). Its type specimen is UCMP 11207 and is a 3D body fossil. Its type locality is UCMP loc. 1131, Walnut Creek, which is in an Oligocene marine horizon in California.
It was recombined as Trachycardium dickersoni by Durham (1944); it was recombined as Clinocardium (Clinocardium) dickersoni by Moore (2003), Hendy (2020).
It was recombined as Trachycardium dickersoni by Durham (1944); it was recombined as Clinocardium (Clinocardium) dickersoni by Moore (2003), Hendy (2020).
Sister species lacking formal opinion data
Synonymy list
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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.
†Clinocardium (Clinocardium) dickersoni Clark 1918
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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: Late/Upper Oligocene or 27.30000 to 23.04000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Chattian | USA (Washington) | Trachycardium dickersoni (208173) | |
| Late/Upper Oligocene | USA (California) | Cardium dickersoni (type locality: 122273) |