Daughter taxa: (blue => in age window 0-800Ma) | Granddaughter taxa | |||
Macroperforate | ||||
Wall spinose, usually with 3½-6 globular chambers in final whorl, trochospiral or planispiral | ||||
Macroperforate, non-spinose | ||||
![]() | Planispiral, wall smooth | |||
Muricate | ||||
![]() | Hedbergellids - trochospiral, mostly low trochospiral. Apertures of earlier formed chambers remain visible around the umbilicus. | |||
Monolamellar | ||||
monolamellar, thick spines, thin shell | ||||
Microperforates | ||||
Microperforate | ||||
Microperforate with sutural apertures (and possibly a separate evolutionary origin) | ||||
Biserial & triserial | ||||
Biserial, enrolled biserial and triserial taxa. Wall microperforate. | ||||
![]() | Biserial (separate evolutionary origin) |
Catalog entries: Globorotalia (Fohsella);
Type images:Geological Range:
Last occurrence (top): Extant Data source: Total of range of species in this database
First occurrence (base): at top of No known fossil record modern (100% up, 0Ma, in stage). Data source: Total of range of species in this database
Plot of occurrence data:
![]() |
Cenozoic Planktonic Foraminifera compiled by the pforams@mikrotax project team viewed: 23-2-2019
Short stable page link: http://mikrotax.org/pforams/index.php?id=100241 Go to Archive.is to create a permanent copy of this page - citation notes |