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Liocium
Taxonomy
Liocium was named by Gabb (1869) [Sepkoski's age data: K Ceno Sepkoski's reference number: 1066]. Its type is Liocium punctatum.
It was assigned to Neotaenioglossa by Sepkoski (2002); and to Pseudomelaniidae by Squires and Saul (2003).
It was assigned to Neotaenioglossa by Sepkoski (2002); and to Pseudomelaniidae by Squires and Saul (2003).
Species
L. marcidulus, L. punctatum (type species)
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1869 | Liocium Gabb p. 174 |
| 2002 | Liocium Sepkoski |
| 2003 | Liocium Squires and Saul p. 148 |
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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. †Liocium Gabb 1869
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†Liocium marcidulus White 1889
†Liocium punctatum Gabb 1869
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. L. Squires and L. R. Saul 2003 | Shell small, elongate tear-drop. Upper spire whorls flat, more mature whorls somewhat convex. Shell glossy and smooth or with complex, wrinkled-looking sculpture. Aperture ovate, anteriorly notched and posteriorly acute. |