arrayname: original
Taxonomy:
Distinguishing features:
Parent taxon (Braarudosphaera): Pentaliths approximately pentagonal, sutures go to edges of pentagon.
This taxon: Pentaliths rounded, and overlapping irregularly on coccosphere
Original description: Cellulae solitariae globosae aut tenuiter polis curtae, latae 15-18 μ, longae 18-20 µ Coccolithes ejusdem speciei, rotundati, alii super alios cooperentes; constit uti quinque crystallis. Diametros coccolithis 4-6 μ. Crassa paries cellulae et in faciem dracunculi. Uterque chromatophoris parietorum unum pyrenoidum continet. Multi globuli sepositionum. Nec stigma, neque haptonema. Duae flagelles priores pares diametro cellulae. Propagatur cellulae per fissionem in cellulas filias duas.
Farinacci & Howe catalog pages: Braarudosphaera magnei
Morphology:
LITHS: nannolith-radiate, pentagonal, CSPH: equant, monomorphic, CROSS-POLARS: T-prominent, |
Lith size: 6->8µm; Segments: 5->5; Coccosphere size: 12->16µm; Liths per sphere: 12->12 Data source notes: lith size (diameter) from OD drawings; csph size calculated from lith size |
Geological Range:
Last occurrence (top): Extant. Data source: present in the plankton (Young et al. 2003)
First occurrence (base): within No known fossil record modern (0.00-0.00Ma, base in "Holocene" stage). Data source:
Plot of occurrence data:
Lefort, F. (1972). Quelques caracteres morphologiques de deux especes actuelles de Braarudosphaera (Chrysophycees, Coccolithophoracees). Botaniste. 20(3): 13-. gs References:
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Braarudosphaera magnei compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 19-4-2025
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=148 Go to Archive.is to create a permanent copy of this page - citation notes |
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