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Taxonomy
Cardium semiasperum was named by Deshayes (1858) [DISTRIBUTION: Eocene; western Europe.]. It is not a trace fossil.
It was recombined as Nemocardium semiasperum by Woodring (1982), Le Renard and Pacaud (1995) and Jeffery and Tracey (1997).
It was recombined as Nemocardium semiasperum by Woodring (1982), Le Renard and Pacaud (1995) and Jeffery and Tracey (1997).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1858 | Cardium semiasperum Deshayes pp. 573-574 figs. pl. 55, figs. 1-2 |
| 1982 | Nemocardium semiasperum Woodring p. 644 |
| 1995 | Nemocardium semiasperum Le Renard and Pacaud p. 74 |
| 1997 | Nemocardium semiasperum Jeffery and Tracey p. 87 figs. Pl 5, fig 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.
†Nemocardium semiasperum Deshayes 1858
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Todd 2001 | |||||