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Siphonodosaria
Taxonomy
Siphonodosaria was named by Silvestri (1924) [Sepkoski's age data: T Eo R]. It is extant. It was considered monophyletic by Hayward et al. (2012).
It was assigned to Uvigerininae by Cushman (1927); to Foraminiferida by Sepkoski (2002); and to Stilostomellidae by Hayward et al. (2012).
It was assigned to Uvigerininae by Cushman (1927); to Foraminiferida by Sepkoski (2002); and to Stilostomellidae by Hayward et al. (2012).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1924 | Siphonodosaria Silvestri |
| 1927 | Siphonodosaria Cushman p. 69 |
| 2002 | Siphonodosaria Sepkoski |
| 2012 | Siphonodosaria Hayward et al. pp. 162-165 |
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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. Siphonodosaria Silvestri 1924
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| B.W. Hayward et al. 2012 | Test small to large, uniserial, elongate, straight to slightly arcuate, usually gently tapered; prolocular spine present or absent. Chambers spherical to ovoid, squarish or campanulate, closely set or remote; sutures flush to incised; wall smooth, pustulose, striate or spinose. Phialine-lipped
aperture on end of long neck, with a collar or shoulder-like step in the middle of the neck; numerous downward-pointed long, fine spines sometimes diverge from the apertural neck collar to form a cloak; wall of neck above the collar in-folds on one side to form a long bifid or T-shaped tooth-like projection into the aperture; remainder of internal apertural rim possesses numerous short, fine denticles. Phialine-lipped aperture at end of long neck with a collar or shoulder-like step in the middle of the neck; aperture with one large T-shaped internal projection and numerous, short internal denticles. (Cretaceous–middle Pleistocene) |