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Trigoniocardia (Americardia) avona

Bivalvia - Cardiida - Cardiidae

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).

Sister species lacking formal opinion data

Synonymy list
YearName and author
1953Cardium (Anthocardia) avonum Richards p. 53 figs. pl. 11, fig. 9
1965Trigoniocardia (Americardia) avona Palmer and Brann p. 318

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
Eubivalvia
subclassAutobranchia(Groblen 1894)
infraclassHeteroconchia(Gray 1854)
CardiomorphiFerussac 1822
CardioniFerussac 1822
CardiidiaFerussac 1822
RankNameAuthor
CardiataFerussac 1822
superorderCardiiformiiFerussac 1822
orderCardiidaFerussac 1822
suborderCardiidinaFerussac 1822
CardioideiFerussac 1822
superfamilyCardioidea(Lamarck 1809)
familyCardiidaeLamarck 1809
Neocardiids
EucardiidsSchneider 1995
subfamilyFraginaeStewart 1930
genusTrigoniocardia()
subgenusAmericardia
speciesavona(Richards 1953)

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.

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Diagnosis
No diagnoses are available