CATALOG - Aspidorhabdus ovalis


Folder trail: Farinacci -> A -> Aspidorhabdus -> Aspidorhabdus ovalis
Folders this level: A. ovalis,

Scans of pages from the "Catalogue of Calcareous Nannofossils" as compiled by Prof A. Farinacci 1969-1989 and updated by Richard Howe 2000-2016 - see also this page.
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Current identification/main database link: Blackites sp.

Compiled data

Citation: Aspidorhabdus ovalis Hay & Towe 1962
Rank: Species
Type locality: France
Type level: Cuisian [Eocene]
Standardised type level: 101_LOWER EOCENE
Type sample: Sample: field sample; From: Tuileries de Donzacq, Couches d D., Landes, France;
Type repository: Urbana, Illinois University, Geologic Collections
Repository Country: USA
Farinacci catalog page: 01002
Language: EN


Notes
this clearly a Rhabdosphaerid base, with the spine broken off. However, it is difficult to classify further since the rim lacks the rail lath cycle which suggests Rhabdosphaera whilst the wide spinebase suggests Blackites. It possibly is evidence that some species currently included in Blackites do not have the archetypal baseplate structure.

References:

Hay, W. W. & Towe, K. M. (1962). Electron microscope examination of some coccoliths from Donzacq (France). Eclogae Geologicae Helvetiae. 55: 497-517. gs


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Aspidorhabdus ovalis: Catalog entry compiled by Anna Farinacci and Richard Howe. Viewed: 24-7-2019

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