Daughter taxa (time control age-window is: 0-800Ma) | ||||
Protentella nicobarensis Low trochospire; aperture extending from umbilicus to periphery but not onto spiral side, lip. | ||||
Protentella prolixa Planispiral with an equatorial symmetrical aperture. | ||||
Protentella sp. Specimens which cannot be assigned to established species |
Catalog entries: Protentella
Distinguishing features:
Parent taxon (Globigerinidae): Wall spinose, usually with 3½-6 globular chambers in final whorl, trochospiral or planispiral
This taxon: Like Globigerinella but adult chambers radially elongate. (Late Miocene - Pliocene)
Phylogenetic relations
Most likely ancestor: Globigerinella - at confidence level 2 (out of 5). Data source: Aze et al. 2011 [but Kennett & Srinivasan 1989 suggest origin from Clavatorella].
Geological Range:
Last occurrence (top): at top of N19 zone (100% up, 4.4Ma, in Zanclean stage). Data source: Total of ranges of the species in this database
First occurrence (base): within N12 zone (11.79-13.41Ma, base in Serravallian stage). Data source: Total of ranges of species in this database
Plot of occurrence data:
Primary source for this page: Kennett & Srinivasan 1983, p.222
Blow, W. H. (1965). Clavatorella, a new genus of the Globorotaliidae. Micropaleontology. 11(3): 365-368. gs Kennett, J. P. & Srinivasan, M. S. (1983). Neogene Planktonic Foraminifera. Hutchinson Ross Publishing Co., Stroudsburg, Pennsylvania. 1-265. gs Lipps, J. H. (1964). Miocene planktonic foraminifera from Newport Bay, California. Tulane Studies in Geology and Paleontology. 2: 109-133. gs O Srinivasan, M. S. & Kennett, J. P. (1975c). The status of Bolliella, Beella, Protentella and related planktonic foraminifera based on surface ultrastructure. Journal of Foraminiferal Research. 5(3): 155-165. gsReferences:
Protentella compiled by the pforams@mikrotax project team viewed: 15-9-2024
Short stable page link: https://mikrotax.org/pforams/index.php?id=104201 Go to Archive.is to create a permanent copy of this page - citation notes |