CATALOG OF ORIGINAL DESCRIPTIONS: Globigerinella tururensis Bronnimann 1952
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Original Description The general outline of the only slightly compressed and not very lobulate test is ellipsoid. The semi-involute last volution comprises 6 to 7 appressed chambers which are subglobular at first then become distinctly laterally compressed. The chambers increase gradually in size, and the end chamber usually is considerably larger and more compressed than the penultimate one. The large subcircular umbilici are filled with matrix. The distinct sutures are straight but their direction is oblique. The large, low arcuate aperture is apparently situated in the equatorial plane at the base of the end chamber. The walls are thin, finely perforate, and the surface is smooth. Size: The maximum diameter of the paratypes is from 0.225mm. to 0.35mm.
Holotype:Maximum diameter 0.325mm.Diameter of umbilicus 0.075mm;End chamber: radial diameter O.16mm.;tangential diameter 0.20mm.;thickness 0.125mm. Etymology: The species is named after the Turure area, E.Central Range where the type locality of the Gautier formation is situated. Extra details from original publication Remarks. The generic position of this species is not clear. For the time being it is assigned to Globigerinella. At first glance it could be taken as a deformed and compressed Globigerina gautierensis, which, however, is ornamented with small pustules, especially on the early chambers of the last volution.
Brönnimann, P. (1952c). Globigerinidae from the Upper Cretaceous (Cenomanian-Maestrichtian) of Trinidad, B. W. I. Bulletins of American Paleontology. 34(140): 1-70. gs
Globigerinella tururensis compiled by the pforams@mikrotax project teamviewed: 20-4-2025
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holotype illus-736.jpg
USNM pal 370092-736.jpg
holotype illus-736.jpg
USNM pal 370092-736.jpg
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