Daughter taxa (time control age-window is: 0-800Ma)![]() | ||||
Sphaeroidinella dehiscens monospecific | ||||
Sphaeroidinella sp. Specimens which cannot be assigned to established species |
Catalog entries: Sphaeroidinella
Distinguishing features:
Parent taxon (Globigerinidae): Wall spinose, usually with 3½-6 globular chambers in final whorl, trochospiral or planispiral
This taxon: Like Sphaeroidinellopsis but with supplementary apertures
Emended description:
Morphology:
Wall type:
Size:
Geographic distribution:
Phylogenetic relations: Sphaeroidinella evolved from Sphaeroidinellopsis in the earliest Pliocene by developing supplementary apertures and larger test size (Text Fig. 23). The initial evolutionary appearance of Sphaeroidinella marks the base of Zone N19 (Early Pliocene). [Kennett & Srinivasan 1983]
Most likely ancestor: Sphaeroidinellopsis - at confidence level 5 (out of 5). Data source: Kennett & Srinivasan 1983.
Geological Range:
Last occurrence (top): Extant. Data source: Total of range of species in this database
First occurrence (base): near top of Messinian Stage (88% up, 5.6Ma, in Messinian stage). Data source: Total of range of species in this database
Plot of occurrence data:
Primary source for this page: Kennett & Srinivasan 1983, p.212
Brummer, G-J. A. & Kucera, M. (2022). Taxonomic review of living planktonic foraminifera. Journal of Micropalaeontology. 41: 29-74. gs V O Cushman, J. A. (1927a). An outline of a re-classification of the Foraminifera. Contributions from the Cushman Laboratory for Foraminiferal Research. 3: 1-105. gs V O Kennett, J. P. & Srinivasan, M. S. (1983). Neogene Planktonic Foraminifera. Hutchinson Ross Publishing Co., Stroudsburg, Pennsylvania. 1-265. gsReferences:
![]() |
Sphaeroidinella compiled by the pforams@mikrotax project team viewed: 25-5-2022
Short stable page link: https://mikrotax.org/pforams/index.php?id=104212 Go to Archive.is to create a permanent copy of this page - citation notes |