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Trichohyalus
Discussion
Discorbis was original name (Cushman, 1933)
Taxonomy
Trichohyalus was named by Loeblich and Tappan (1953) [Sepkoski's age data: Q Plei R]. It is extant. It was considered unknown by Loeblich and Tappan (1953).
It was assigned to Trichohyalidae by Loeblich and Tappan (1953); and to Foraminiferida by Sepkoski (2002).
It was assigned to Trichohyalidae by Loeblich and Tappan (1953); and to Foraminiferida by Sepkoski (2002).
Synonymy list
| Year | Name and author |
|---|---|
| 1953 | Trichohyalus Loeblich and Tappan |
| 2002 | Trichohylas 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. Trichohyalus Loeblich and Tappan 1953
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. R. Loeblich and H. Tappan 1953 | Test free, trochoid, planoconvex, all whorls visible dorsally, ventral side obscured by a secondary growth of shell material, forming a vesicularlike plate over the umbilical region and extending over the other chambers nearly to the periphery, with pores extending through this vesicular tissue into the cavity beneath, and the exterior ornamented with nodes, ridges, and furrows; wall calcareous, hyaline, coarsely perforate-granular in structure, smooth dorsally, the ventral side ornamented by the grooves, ridges, and nodes of the vesicular secondary growth; aperture absent or obscured by secondary growth on the final chamber, but can be seen on earlier chambers by dissection, as an arch at the base of the chamber, slightly ventral from the periphery. Occurrence: Recent. |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||
Collections
No collection or age range data are available