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Taxonomy
Cardium (Anthocardia) avonum was named by Richards (1953) [DISTRIBUTION: Eocene; Gulf Coastal Plain.]. Its type specimen is FGS I-7575, a shell, and it is not a trace fossil. Its type locality is Florida Geological Survey L-76, Avon Park Limestone, Levy Co., FL, which is in a Lutetian marine limestone in the Avon Park Formation of Florida.
It was recombined as Trigoniocardia (Americardia) avona by Palmer and Brann (1965).
It was recombined as Trigoniocardia (Americardia) avona by Palmer and Brann (1965).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1953 | Cardium (Anthocardia) avonum Richards p. 53 figs. pl. 11, fig. 9 |
| 1965 | Trigoniocardia (Americardia) avona Palmer and Brann p. 318 |
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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.
†Trigoniocardia (Americardia) avona Richards 1953
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, c = class | |||||
| References: Aberhan et al. 2004, Sanchez Roig 1926, Todd 2001 | |||||