Taxonomy:
Distinguishing features:
Parent taxon (Papposphaera): Coccolith distal rim serrated - elements pentagonal;
Coccosphere varimorphic, or dimorphic. All coccoliths have spines but CFCs typically have longer spines and larger calices.
This taxon: Central area with diagonal cross
Process ca. 0.5-1.5 µm, robust with calyx of three or four rods.
Dimorphic: CFCs with tall processes (ca. 1.5 µm) with calyx of 4 (or 3?) rods perpendicular to process. BCs with shorter processes and calyx of 3 diverging rods.
Farinacci & Howe catalog pages:
Morphology:
Size:
LITHS: murolith, elliptical, CA: ca_disjunct, diagonal cross, process, CSPH: equant, CFC, |
Lith size: 0.5->1µm; Coccosphere size: 4->6µm; Liths per sphere: 30->40 Data source notes: csph & lith size (BC diameter) from Cros & Fortuño 2002 & slightly extended |
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: [JRY rough estimate]
Plot of occurrence data:
Cros, L. & Fortuño, J. -M. (2002). Atlas of northwestern Mediterranean coccolithophores. Scientia Marina. 66: 1-186. 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:
Papposphaera sp. type 2 compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 10-12-2024
Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1023 Go to Archive.is to create a permanent copy of this page - citation notes |
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