Sphenolithus tintinnabulum


Classification: ntax_cenozoic -> Discoasterales -> Sphenolithaceae -> Sphenolithus -> S. dissimilis group -> Sphenolithus tintinnabulum
Sister taxa: S. disbelemnos, S. dissimilis, S. procerus, S. tintinnabulum, S. paratintinnabulum, S. truaxii

Taxonomy:

Citation: Sphenolithus tintinnabulum Maiorano & Monechi 1997
Rank: Species
Taxonomic discussion: Bergen et al. (2017) describe S. tintinnabulum as having a moncrystalline spine and create a new species for similar forms with a compound spine. However the holotype of S. tintinnabulum clearly has a compound spine, and this is also stated in the type description.

Distinguishing features: Distinctive triangular outline and very short multipartite spine. (NB The name tininnabulum means small bell and describes the shape).

Farinacci & Howe catalog pages: S. tintinnabulum *

Search data:
TagsLITHS: nannolith-radiate, circular, cylindrical, CROSS-POLARS: R-prominent,
MetricsLith size: 2->4µm;
Data source notes: lith height from OD
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within CN2 zone (17.95-19.03Ma, top in Burdigalian stage). Data source: Maiorano & Monechi 1997
First occurrence (base): within CN1c subzone (19.03-22.82Ma, base in Aquitanian stage). Data source: Maiorano & Monechi 1997

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 V O

Maiorano, P. & Monechi, S. (1997). New Early Miocene species of Sphenolithus Deflandre, 1952 from the North Atlantic Ocean. Journal of Nannoplankton Research. 19(2): 103-107. gs V O

Maiorano, P. & Monechi, S. (1998). Revised correlations of early and middle Miocene calcareous nannofossil events and magnetostratigraphy from DSDP Site 563 (North Atlantic Ocean). Marine Micropaleontology. 35(235-255): -. gs


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Sphenolithus tintinnabulum compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 16-4-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1324 Go to Archive.is to create a permanent copy of this page - citation notes



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