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Verispira
Taxonomy
Synonymy list
| Year | Name and author |
|---|---|
| 1988 | Verispira Palmieri pp. 38 - 39 |
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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. †Verispira Palmieri 1988
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| V. Palmieri 1988 | Test free or attached, small to medium in size, oblong to rounded or hemispherical; chambers 10 to 12, subglobular to narrowly rounded, trochospirally arranged, often irregularly, in 2 to 3 whorls, greatly increasing in size and strongly overlapping; last chamber may expand disproportionately in attached forms; spiral side convex to roughly hemispherical, usually showing all or most of the chambers and spiral suture; umbilical side flattened or slightly concave, showing last chamber encroaching upon a few preceding ones; coiling may be dextral or sinistral; aperture a slit at base of last chamber in umbilical position, may be covered by a projection of the last septal face; test wall composed of an inner lining and an external, thicker microgranular layer; wall finely perforated, particularly in sutural positions. |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||