S. capricornutus group


Classification: Coccolithophores -> Discoasterales -> Sphenolithaceae -> Sphenolithus -> S. capricornutus group
Sister taxa: S. capricornutus group, S. dissimilis group, S. moriformis group, S. heteromorphus group, S. predistentus group, S. furcatolithoides group, S. radians group, S. conspicuus group, S. sp.,

Daughter taxa: (blue => in age window 0-800Ma)
Small with two, diverging, apical spines, and usually a flaring base.
Narrow proximal shield and apical spine with slightly diverging elements
Short wide proximal shield and apical spine with strongly diverging elements

Taxonomy:

Citation: Sphenolithus S. capricornutus group Bergen et al. 2017
Rank: species group

Distinguishing features: Apical spine formed of radiating elements

Farinacci & Howe catalog pages: capricornutus group [no catalog entry yet]

Search data:
Tags
MetricsLith size: 0->0┬Ám;
Sources:
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): in mid part of Langhian Stage (49% up, 14.9Ma, in Langhian stage). Data source: Total of range of species in this database
First occurrence (base): in upper part of Chattian Stage (73% up, 24.4Ma, in Chattian stage). Data source: Total of range of species in this database

Plot of occurrence data:

References:

Bergen, J. A., de Kaenel, E., Blair, S. A., Boesiger, T. M. & Browning, E. (2017). Oligocene-Pliocene taxonomy and stratigraphy of the genus Sphenolithus in the circum North Atlantic Basin: Gulf of Mexico and ODP Leg 154. Journal of Nannoplankton Research. 37(2-3): 77-112. gs


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S. capricornutus group compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 22-11-2019

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=1540 Go to Archive.is to create a permanent copy of this page - citation notes



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