Daughter taxa (time control age-window is: 0-800Ma) | ||||
Canistrolithus valliformis Typical form - with peg-like nodes around the central area | ||||
Canistrolithus sp. Specimens which cannot be assigned to established species |
Taxonomy:
Distinguishing features:
Parent taxon (Alisphaeraceae): Heterococcoliths asymetric, arranged in meridional rows on coccosphere; V-unit forms flange, R-unit basal. Also nannolith phase "Polycrater" with quadrate aragonitic liths.
This taxon: Coccoliths elongate oblong muroliths with asymmetric distal flange
Farinacci & Howe catalog pages: Canistrolithus *
Morphology:
LITHS: murolith, asymmetric, elliptical, CA: vacant, CSPH: elongated, monomorphic, CROSS-POLARS: V-prominent, R-prominent, |
Lith size: 2.2->3.5µm; Coccosphere size: 15->25µm; |
Geological Range:
Last occurrence (top): Extant. Data source: Total of ranges of the species in this database
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in "Holocene" stage). Data source: Total of ranges of species in this database
Plot of occurrence data:
Jordan, R. W. & Chamberlain, A. H. L. (1993). Canistrolithus valliformis gen. et sp. nov. (Syracosphaeraceae, Prymnesiophyta), a comparison with the genus Alisphaera. Phycologia. 32(5): 373-378. gs Kleijne, A., Jordan, R. W., Heimdal, B. R., Samtleben, C., Chamberlain, A. H. L. & Cros, L. (2002). Five new species of the coccolithophorid genus Alisphaera (Haptophyta) with notes on their distribution, coccolith structure and taxonomy. Phycologia. 40(6): 583-601. gs Young, J. R., Geisen, M., Cros, L., Kleijne, A., Probert, I. & Ostergaard, J. B. (2003). A guide to extant coccolithophore taxonomy. Journal of Nannoplankton Research. S1: 1-132. gs References:
Canistrolithus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 14-9-2024
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=234 Go to Archive.is to create a permanent copy of this page - citation notes |
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