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Taxonomy
Notonucula was named by Bradshaw and McCartan (1991) [Sepkoski's age data: D l]. Its type is Notonucula cuspidis.
It was assigned to Nuculidae by Bradshaw and McCartan (1991); and to Nuculoida by Sepkoski (2002).
It was assigned to Nuculidae by Bradshaw and McCartan (1991); and to Nuculoida by Sepkoski (2002).
Species
N. cuspidis (type species), N. demissa
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1991 | Notonucula Bradshaw and McCartan p. 15 |
| 2002 | Notonucula 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. †Notonucula Bradshaw and McCartan 1991
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†Notonucula cuspidis Bradshaw and McCartan 1991
†Notonucula demissa Bradshaw and McCartan 1991
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| M. A. Bradshaw and L. McCartan 1991 | Orthogyral to prosogyral nuculoids with smooth inner ventral margins and a concentric ornament lacking radial elements. Umbonal muscles associated with an internal ridge that is subparallel to the dorsal margin. |