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Taxonomy
Chione sechuntana was named by Hanna and Israelsky (1925). Its type specimen is CAS 1724, a shell, and it is a 3D body fossil. Its type locality is CAS Loc. 339, Boca Pan [Zorritos Fm], which is in a Miocene marine horizon in the Zorritos Formation of Peru.
It was recombined as Chione (Chionopsis) sechuntana by Woodring (1982).
It was recombined as Chione (Chionopsis) sechuntana by Woodring (1982).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1925 | Chione sechuntana Hanna and Israelsky |
| 1982 | Chione (Chionopsis) sechuntana Woodring p. 702 |
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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.
†Chione (Chionopsis) sechuntana Hanna and Israelsky 1925
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| G. D. Hanna and M. C. Israelsky 1925 | Shell small, ovate-cordiform, sub-trigonal, gibbose, radiately and concentrically ribbed; beaks prominent, inflated, incurved and directed forward, situated about a third the distance from the anterior end; anterior end short, convex; posterior slope nearly straight along hinge line ; basal margin gently rounded, slightly notched posteriorly due to slight flexuosity; lunule round, well defined; escutcheon short and broad |