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Notoleptaena
Taxonomy
Notoleptaena was named by Gill (1951) [Sepkoski's age data: D Gedi D Emsi Sepkoski's reference number: 25]. Its type is Notoleptaena linguifera.
It was assigned to Rafinesquinidae by Gill (1951); to Leptaeninae by Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
It was assigned to Rafinesquinidae by Gill (1951); to Leptaeninae by Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
Species
N. linguifera (type species), N. undulifera
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1951 | Notoleptaena Gill pp. 191 - 192 |
| 2000 | Notoleptaena Williams et al. p. 250 |
| 2002 | Notoleptaena Sepkoski |
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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. †Notoleptaena Gill 1951
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†Notoleptaena linguifera Gill 1951
†Notoleptaena undulifera Talent 1963
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| E. D. Gill 1951 | Convexi-concave rafinesquid brachiopods with valves geniculated anteriorly and laterally, the dorsal valve being the more strongly geniculated. Ventral valve with tongue on anterior margin, and dorsal valve with accommodating recess. Ornamentation radially multistriate with concentric wrinkles on both the posterior and the geniculated parts of the valves. Ventral valve with high, smooth palintrope, while that of the dorsal valve is linear. Ventral and dorsal muscle fields of leptaenid type, with associated marginal ridges. Large bilobed cardinal process. The new genus is readily recognized by the presence of the tongue (die Zunge of the German literature). |