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Talasotreta
Taxonomy
Talasotreta was named by Holmer et al. (1996). Its type is Talasotreta apollonovi.
It was assigned to Acrotretinae by Holmer et al. (1996).
It was assigned to Acrotretinae by Holmer et al. (1996).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1996 | Talasotreta Holmer et al. pp. 484 - 486 |
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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. †Talasotreta Holmer et al. 1996
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†Talasotreta alta Cooper 1956
†Talasotreta apollonovi Holmer et al. 1996
†Talasotreta deformis Holmer 1989
†Talasotreta gigantea Cooper 1956
†Talasotreta magna Cooper 1956
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. E. Holmer et al. 1996 | Shell ventribiconvex, ornamented by regularly spaced rugellae. Ventral valve broadly conical; pseudointerarea procline to catacline, poorly defined laterally and divided by intertrough; pedicle foramen enclosed within larval shell. Dorsal valve flatly convex with moderately high, subtriangular pseudointerarea divided by broad, shallow median groove. Ventral interior with ridge-like apical process anterior to foramen, occluding umbonal area in some species; ventral mantle canal system pinnate. Dorsal interior with weak median buttress and low median ridge. |