Calcicalathina erbae


Classification: ntax_mesozoic -> Eiffellithales -> Rhagodiscaceae -> Calcicalathina -> Calcicalathina erbae
Sister taxa: C. alta, C. clipeus, C. erbae, C. oblongata, C. sp.

Distinguishing features: Calcicalathina with a low central area showing sharp distinction between rim (1st order yellow birefringence) and coarsely-granular central area


Taxonomy:

Citation: Calcicalathina erbae Bergen 1998
Rank: Species
Synonyms: Calcicalathina sp. A Bergen 1994
Calcicalathina praeoblongata Aguado in Aguado et al. (2000) [both Bergen 1998 and Aguado et al. 2000 included Calcicalathina sp. A of Bergen 1994 in their synonymy, so it seems they are describing the same species - JRY April 2015]

Farinacci & Howe catalog pages: C. erbae * , C. praeoblongata *

Distinguishing features: Calcicalathina with a low central area showing sharp distinction between rim (1st order yellow birefringence) and coarsely-granular central area

Search data:
TagsLITHS: murolith, elliptical, CA: closed, CROSS-POLARS: rim-unicyclic, R-prominent,
MetricsLith size: 8->10µm;
Data source notes: specimens of Bergen 1998 and Aguado et al. 2000
The morphological data given here can be used on the advanced search page. See also these notes

Geological Range:
Last occurrence (top): within Late Aptian Substage (112.95-122.98Ma, top in Aptian stage). Data source: original description
First occurrence (base): within Early Berriasian Substage (143.57-145.01Ma, base in Berriasian stage). Data source: original description

Plot of occurrence data:

References:

Aguado, R., Company, M. & Tavera, J. M. (2000). The Berriasian/Valanginian boundary in the Mediterranean region: new data from the Caravaca and Cehegín sections, SE Spain. Cretaceous Research. 21: 1-21. gs

Bergen, J. A. (1994). Berriasian to early Aptian calcareous nannofossils from the Vocontian Trough (SE France) and Deep Sea Drilling Site 534: new nannofossil taxa and a summary of low-latitude biostratigraphic events. Journal of Nannoplankton Research. 16(2): 59-69. gs V O

Bergen, J. A. (1998). Calcareous nannofossils from the lower Aptian historical stratotype at Cassis-La Bedoule (SE France). Geologie Mediterraneenne. 25(3-4): 227-255. gs V O


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Calcicalathina erbae compiled by Jeremy R. Young, Paul R. Bown, Jacqueline A. Lees viewed: 23-1-2021

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Short stable page link: http://mikrotax.org/Nannotax3/index.php?id=10152 Go to Archive.is to create a permanent copy of this page - citation notes



Comments (2)

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Roque Aguado (Linares, Spain)

Hi Jeremy. The paper by Aguado et al., was accepted for publication 18-10-1999 and was published as part of the volume 21, first issue of 2000, in Cretaceous Research (see snapshot 1). The online documentation (see snapshots 2 and 3) says that this was published in February 2000 (although probably the paper was available online prior to this date). Cretaceous Research is a reputed journal, and I have no reason to question these data.

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Roque Aguado (Linares, Spain)

Hi all,

Recently, one of my colleagues gave me an indication regarding the validity of the Calcicalathina erbae/praeoblongata specific names.

As currently indicated in the nannotax page, the name erbae takes precedence over praeoblongata (synonym), as the first of them was published earlier. The apparent publication dates of C. erbae and C. praeoblongata were respectively 1998 and 2000. However, the original description of C. erbae was published in a “special volume” of the journal Géologie Méditérranéenne, edited by M. Moullade et al., dedicated to the Bedoulian. Although this volume was dated 1998, this date only corresponds to the “seriation” of the journal, while the volume was effectively published (and accessible) in the year 2000 (legal deposit number “2ème trimestre 2000”). The paper by Aguado et al. describing C. praeoblongata appeared in February 2000, and then, the original description of C. praeoblongata was “effectively published” before that of C. erbae (synonym).

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Jeremy Young (Tonbridge, UK)

Hi Roque - that sounds reasonable it is quite clear in the ICN that it is the actual publication date not the cover date which is used to determine priority. However, do you know for sure when the actual publication of the Cretaceous Res issue was?

Jeremy

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