Tranolithus bitraversus

Classification: Mesozoic -> Eiffellithales -> Chiastozygaceae -> Tranolithus -> Tranolithus bitraversus
Sister taxa: T. bitraversus, T. gabalus, T. incus, T. macleodiae, T. minimus, T. orionatus, T. praeorionatus, T. salillum, T. stemmerikii, T. sp.,


Citation: Tranolithus bitraversus (Stover 1966) Bergen, in Bralower & Bergen 1998
Rank: Species
Basionym: Parhabdolithus bitraversus Stover 1966
Notes & discussion: This poorly defined species of Stover 1966 was reincarnated by Bralower & Bergen 1998 and used for Tranolithus with a prominent solid circular spine.

Farinacci & Howe catalog pages: Parhabdolithus bitraversus *

Search data:
TagsLITHS: murolith, elliptical, CA: process, bar, V-UNITS: V-prominent, DETAILS: ca_disjunct, rim-unicyclic,
MetricsLith size: 7->10┬Ám;
Sources: original description
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Campanian Stage (72.05-83.64Ma, top in Campanian stage). Data source: Bralower & Bergen 1998
First occurrence (base): within Late Albian Substage (100.50-107.59Ma, base in Albian stage). Data source: Bralower & Bergen 1998

Plot of occurrence data:

  • (NB There is no histogram as there are no occurrence records for the taxon in the Neptune database) Parent: Tranolithus


    Bralower, T. J. & Bergen, J. A. (1998). Cenomanian-Santonian calcareous nannofossil biostratigraphy of a transect of cores drilled across the Western Interior Seaway. In, Dean, W. E. & Arthur, M. A. (eds) Stratigraphy and paleoenvironments of the Cretaceous Western Interior Seaway. SEPM Concepts in Sedimentology and Paleontology. -. gs

    Stover, L. E. (1966). Cretaceous coccoliths and associated nannofossils from France and the Netherlands. Micropaleontology. 12: 133-167. gs


    Tranolithus bitraversus compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 28-3-2020

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