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Coccolithophores


Ancestry: Coccolithophores
Sister taxa: Coccolithophores  Farinacci  JR271-sampling methods  Mesozoic  unsorted  

Daughter taxa (blue => in age window 0-300Ma)Granddaughter taxa
Loading...Loading...Loading...Loading... Motile phases with vestigial haptonema. Heterococcoliths mostly placoliths with R-unit dominant

Loading...Loading...Loading...Loading... Mostly placolith heterococcoliths, with V-unit forming the distal shield; R-unit the proximal shield.

Loading...Loading...Loading...Loading... Heterococcoliths with V-units forming upper/outer cycle of imbricated elements and R-units forming basal plate and central mass of irregular elements

Loading...Loading...Loading...Loading... Coccoliths with radial lath cycle of T-units, and disjunct, often complex, axial structure, coccospheres often polymorphic

Loading...Loading...Loading...Loading... Various heterococcolith groups not obviously related to the well-defined orders

Loading...Loading...Loading...Loading... Haploid life-cycle stages, with liths formed of numerous rhombohedral microcrystals

Loading...Loading...Loading...Loading... Radially symmetrical nannoliths formed from one to several separate cycles of elements that radiate from a common centre or axis.

Loading...Loading...Loading...Loading... Haptophytes forming calcareous structures not obviously homologous with either heterococcoliths or holococcoliths

Loading...Loading...Loading...Loading... Mesozoic taxa which occur in low abundances in the early Palaeogene.

Loading...Loading...Loading...Loading... Calcareous dinoflagellates and various other non-coccolithophores often found with coccolithophores

Nomenclature:
Citation: Coccolithophores informal

Geological Range:
Last occurrence (top): Recent (0.00Ma). Data source: present in the plankton (Young et al. 2003)
First occurrence (base): Early Triassic (252.16Ma). Data source: [JRY rough estimate]

References:

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, Special Issue, 1: 1-132. 


Nannotax3 - Coccolithophores - Coccolithophores by: Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 29-8-2014

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