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Actinodonta
Taxonomy
Actinodonta was named by Philipps (1848) [Sepkoski's age data: O Aren-l S Ludl-l Sepkoski's reference number: 91,1066,1077]. Its type is Actinodonta cuneata.
It was assigned to Cycloconchidae by Cox et al. (1969) and Cope (1996); to Modiomorphoida by Sepkoski (2002); and to Actinodontidae by Bouchet et al. (2010).
It was assigned to Cycloconchidae by Cox et al. (1969) and Cope (1996); to Modiomorphoida by Sepkoski (2002); and to Actinodontidae by Bouchet et al. (2010).
Species
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1848 | Actinodonta Philipps p. 225 |
| 1873 | Davidia Hicks p. 49 |
| 1969 | Actinodonta Cox et al. p. N399 |
| 1969 | Davidia Cox et al. p. N820 |
| 1996 | Actinodonta Cope pp. 995, 996 |
| 2002 | Actinodonta Sepkoski |
| 2010 | Actinodonta Bouchet et al. |
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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.
G. †Actinodonta Philipps 1848
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†Actinodonta cuneata Phillips and Salter 1848
†Actinodonta naranjoana de Verneuil and Barrande 1855
†Actinodonta ramseyensis Hicks 1873
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Invalid names: Actinodonta cambriensis Hicks 1873 [synonym], Actinodonta homfrayi Hicks 1873 [synonym], Actinodonta ornata Hicks 1873 [synonym], Actinodonta plana Hicks 1873 [synonym]
Invalid names: Davidia Hicks 1873 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| H. Hicks 1873 (Davidia) | Ovate, umbo subcentral, nearer anterior extremity, both extremities
nearly equal in width. Surface of shell raised, and almost ridged between umbo and each end near the cardinal margin. Hinge-line more or less straight, about a third of the length of the shell, and extending equally on each side of the umbo. Lines of growth strongly marked. The subcentral umbo, equal extremities, and almost triangular shape of the shell are important characters, and sufficient to stamp it a new genus. |