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Falsotruncana
Taxonomy
Falsotruncana was named by Loeblich and Tappan (1988) [Sepkoski's age data: K Turo-u K Coni-l]. It was considered unknown by Loeblich and Tappan (1988).
It was assigned to Hedbergellidae by Loeblich and Tappan (1988); and to Foraminiferida by Sepkoski (2002).
It was assigned to Hedbergellidae by Loeblich and Tappan (1988); and to Foraminiferida by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1988 | Falsotruncana Loeblich and Tappan |
| 2002 | Falsotruncana 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. †Falsotruncana Loeblich and Tappan 1988
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. R. Loeblich and H. Tappan 1988 | Low trochospire test, always sinister winding. Lobe outline. profile truncated by an imperforated peripheral band sometimes marked even on the last compartments. bordered by two pustular carenes visible to the hands on the first three compartments of the last lap. In some cases, the peripheral band and pustular carina are markedly perforated. Almost peripheral umbilical-extraumbilical main opening, hemmed by a narrow lip. Shallow umbilicus, flared, without portici or tegilla. Radiated and depressed umbilical sutures. Spiral sutures, radiates apeu arched, depressed. In some primitive forms, the surface of the first cells (spiral face) is very pustular. |