arrayname: original
Catalog entries: Protentella prolixa
Type images:Distinguishing features:
Parent taxon (Protentella): Like Globigerinella but adult chambers radially elongate. (Late Miocene - Pliocene)
This taxon: Planispiral with an equatorial symmetrical aperture.
Morphology:
Wall type:
Character matrix
test outline: | Stellate | chamber arrangement: | Planispiral | edge view: | Equally biconvex | aperture: | Extraumbilical-peripheral |
sp chamber shape: | Elongate | coiling axis: | Very low | periphery: | N/A | aperture border: | Thick lip |
umb chbr shape: | Elongate | umbilicus: | Wide | periph margin shape: | Moderately rounded | accessory apertures: | None |
spiral sutures: | Weakly depressed | umb depth: | Shallow | wall texture: | Cancellate | shell porosity: | Macroperforate: >2.5µm |
umbilical or test sutures: | Strongly depressed | final-whorl chambers: | 5-5 | N.B. These characters are used for advanced search. N/A - not applicable |
Geographic distribution
Phylogenetic relations
Geological Range:
Last occurrence (top): within N14 zone (10.46-11.63Ma, top in Tortonian stage). Data source: Kennett & Srinivasan 1983
First occurrence (base): within N12 zone (11.79-13.41Ma, base in Serravallian stage). Data source: Kennett & Srinivasan 1983
Plot of occurrence data:
Primary source for this page: Kennett & Srinivasan 1983, p.222
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 Norris, R. D. (1998). Planktonic foraminifer biostratigraphy: Eastern Equatorial Atlantic. Proceedings of the Ocean Drilling Program, Scientific Results. 159: 445-479. gs O Saito, T., Thompson, P. R. & Breger, D. (1976). Skeletal ultra-microstructure of some elongate-chambered planktonic foraminifera and related species. In, Takayanagi, Y. & Saito, T. (eds) Progress in Micropaleontology, Special Publication. Micropaleontology Press, The American Museum of Natural History, New York 278-304. gs 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 prolixa compiled by the pforams@mikrotax project team viewed: 16-3-2025
Short stable page link: https://mikrotax.org/pforams/index.php?id=104202 Go to Archive.is to create a permanent copy of this page - citation notes |
This policy contains information about your privacy. By posting, you are declaring that you understand this policy:
This policy is subject to change at any time and without notice.
These terms and conditions contain rules about posting comments. By submitting a comment, you are declaring that you agree with these rules:
Failure to comply with these rules may result in being banned from submitting further comments.
These terms and conditions are subject to change at any time and without notice.
Comments