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Species Heterohelix costulata Ehrenberg 1843


Discussion / Comments:
Van Eijden & Smit (1991):
Remarks. H. costulata is extremely rare in the upper Maestrichtian at Site 752. Its local range is paleoenvironmentally controlled, and elsewhere it is known to range from the middle Campanian to the top of the Maestrichtian.
Synonym list:
Van Eijden & Smit (1991):
1938 Guembelina costulata Cushman. - Cushman : 16-17 pl. 3, figs. 7a-9
1991 Heterohelix costulata Ehrenberg. - Van Eijden & Smit :
References:

Cushman,J.A. (1938):
Cretaceous species of Guembelina and related genera . Cushman Lab. Foraminiferal Res. Contrib. Vol. 14 p. 2-28

Van Eijden,A.J.M. and Smit,J. (1991):
Eastern Indian Ocean Cretaceous and Paleogene quantitative biostratigraphy.
In: Proceedings of the Ocean Drilling Program, Scientific Results Vol. 121 Eds: Weissel, J.Peirce, J.Taylor, E.Alt, J. p. 77-123
Anonymous: Unedited TaxonConcept data
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