CATALOG OF ORIGINAL DESCRIPTIONS: Globigerina eocanica var. irregularis Subbotina 1953

This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.


Higher levels: pf_cat -> G -> Globigerina -> Globigerina eocaenica irregularis
Other pages this level: << < G. dubia lakiensis, G. dubiata, G. dudrouensis, G. dutertrei, G. eamesi, G. edita, G. edita polycamera, G. eggeri, G. eggeriformis, G. elburganica, G. elevata, G. elongata, G. elongata Shutskaya, G. eocaena, G. eocaenica, G. eocaenica irregularis, G. esnaensis, G. euapertura, G. eugubina, G. eximia, G. exumbilicata, G. falconensis, G. fariasi, G. finlayi, G. fistulosa, G. flosculus, G. foliata, G. fragilis, G. fringa, G. frontosa, G. galapagosensis, > >>

Globigerina eocaenica irregularis

Citation: Globigerina eocanica var. irregularis Subbotina 1953
Rank: Variety

Current identification/main database link: Subbotina eocaena (Guembel 1868)


Original Description
[Translation from the Russian. - Test, in general, is the same as in the typical form. However, rather than having three chambers in the final whorl, as in Globigerina eocaenica, there are 3ÃÇÂ_ or 4 chambers in the final whorl. The first chamber in the final whorl seems to displace the 2 following along the spiral toward the final chamber. Therefore, in Globigerina eocaenica irregularis the final chamber overlapsnot 2 but 3 preceding chambers, which are closely adjacent to one another, as it is evident in the figures. The aperture in these forms, in comparison to the aperture of typical specimens, is displaced toward the umbilicus which is sometimes situated immediately above it. This form is isomorphic which the associated Globigerina bulloides d'Orbigny, and differs from it in smaller test dimensoins, a less distinctly defined 4 chamberes final whorl, considerably closer attachment of chambers, and a comparatively small, narrow, open aperture.]

References:

Subbotina, N. N. (1953). Foraminiferes fossiles d'URSS Globigerinidae, Globorotaliidae, Hantkeninidae. Bureau de Recherches Geologiques et Minieres. 2239: 1-144. gs


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Globigerina eocaenica irregularis compiled by the pforams@mikrotax project team viewed: 31-3-2020

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Short stable page link: http://mikrotax.org/pforams/index.php?id=130466 Go to Archive.is to create a permanent copy of this page - citation notes



Comments (1)

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François

spelling Globigerina eocaenica irregularis as in Mikrotax original descriptions catalog.

From G. eocaenica Terquem, 1882

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Jeremy Young (Tonbridge, UK)

corrected thanks (and duplicate entry deleted) Jeremy

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