Poritectolithus tyronus


Classification: ntax_cenozoic -> Holococcoliths -> bridged -> Poritectolithus -> Poritectolithus tyronus
Sister taxa: P. maximus, P. poritectus, P. tyronus, P. sp.

Taxonomy:

Citation: Poritectolithus tyronus Kleijne, 1991
Rank: Species

Distinguishing features: Like P. poritectum but less convex and CFC leaf terminated in narrow spinelet (distinction of these two species may prove unsound).

Farinacci & Howe catalog pages: P. tyronus *

Search data:
TagsLITHS: holococcolith, elliptical, hollow, CA: bar, closed,
CSPH: equant, elongated, CFC, CROSS-POLARS: V-prominent, R-prominent,
MetricsLith size: 1.25->1.75µm; Coccosphere size: 8->10µm; Liths per sphere: 80->100
Data source notes: morphom data from Cros & Fortuño (2002)
The morphological data given here can be used on the advanced search page. See also these notes

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:

References:

Cros, L. & Fortuño, J. -M. (2002). Atlas of northwestern Mediterranean coccolithophores. Scientia Marina. 66: 1-186. gs V O

Kleijne, A. (1991). Holococcolithophorids from the Indian Ocean, Red Sea, Mediterranean Sea and North Atlantic Ocean. Marine Micropaleontology. 17: 1-76. 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, Special Issue. 1: 1-132. gs V O


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Poritectolithus tyronus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 13-4-2021

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Short stable page link: https://mikrotax.org/Nannotax3/index.php?id=1116 Go to Archive.is to create a permanent copy of this page - citation notes



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