Taxonomy:
Distinguishing features:
Parent taxon (Alisphaera): Coccoliths placolith-like, with asymmetrical distal flange
This taxon: Flange extension angular, sub-vertical, with central tooth, extending the full length of the central area. Teeth absent.
Farinacci & Howe catalog pages: Alisphaera memoria
Morphology:
T
Size:
LITHS: placolith, asymmetric, elliptical, CA: vacant, CSPH: equant, monomorphic, CROSS-POLARS: V-prominent, R-prominent, |
Lith size: 0->0µm; |
Geological Range:
Last occurrence (top): Extant. Data source:
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in "Holocene" stage). Data source:
Plot of occurrence data:
Doan-Nhu, H. & Nguyen-Ngoc, L. (2021). On the genus Alisphaera (Alisphaeraceae, Haptophyta) including a new species A. memoria sp. nov. in the South China Sea. Nova Hedwigia. 113(3-4): 281-290. gsReferences:
Alisphaera memoria compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 14-1-2025
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1804 Go to Archive.is to create a permanent copy of this page - citation notes |
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