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Cyrtonotreta vasculata
Taxonomy
Cyrtonotreta vasculata was named by Benedetto (2015). Its type specimen is CEGH-UNC 25771, a valve (dorsal valve internal mold), and it is a 3D body fossil. Its type locality is Cerro La Chilca Section Palaeoglossa–Chilcorthis Association, which is in a Darriwilian deep-water shale/marl in the Los Azules Formation of Argentina.
Synonymy list
| Year | Name and author |
|---|---|
| 2015 | Cyrtonotreta vasculata Benedetto pp. 85 - 86 fig. 4.1–11 |
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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.
†Cyrtonotreta vasculata Benedetto 2015
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. L. Benedetto 2015 | Shell transversely oval. Ventral valve proportionally low, nearly catacline; dorsal valve with shallow sulcus, straight dorsal pseudointerarea averaging 57% of the valve width. Small apical process, minute pedicle tube. Dorsal visceral area deeply impressed occupying 20–25% of the valve length; median buttress poorly developed or absent; median septum bladelike, extending over the 60–70% of total valve length. Both valves with deeply impressed pinnate mantle canal system. |