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Globigerina anguliofficinalis
Taxonomy
Globigerina anguliofficinalis was named by Blow (1967). It is not extant.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1967 | Globigerina anguliofficinalis Blow |
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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.
†Globigerina anguliofficinalis Blow 1967
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| W. Blow 1967 | The small test consists of about 11 chambers arranged in a low trochospire with 4 1/2 chambers comprising the last whorl. The chambers are slightly to moderately inflated, closely appressed but separated by deeply incised ventral intercameral sutures. The intercameral sutures are marked by radial bands of less coarsely perforate wall and are distinctly “U”-shaped. The distinct ventral intercameral sutures are formed by a sharp “in-turning” of the chamber walls and this “in-turning” gives a moderately lobate appearance to the equatorial profile of the test. The umbilicus is small, but deep and open and is surrounded by an imperforate area which grades into the imperforate lip of the final chamber. The aperture of the final chamber is a low arch, somewhat asymmetrically placed with respect to the umbilicus. On the dorsal side the intercameral sutures are less deeply incised, less “U-shaped” than on the ventral side. The spire is low, depressed and the early chambers indistinctly separated one from the other. The wall is relativey densely perforate and the pores open into distinct pits between small rugosities. Wall calcareous, radial hyaline. Maximum diameter of holotype 0.27 mm. |
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||
Age range: Aquitanian or 23.04000 to 20.45000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Aquitanian | Austria | Globigerina anguliofficinalis (99160) | |
| Aquitanian - Langhian | USA (North Carolina) | Globigerina anguliofficinalis (48887) |