Journal
JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA
Volume 74, Issue 5, Pages 597-600Publisher
SPRINGER INDIA
DOI: 10.1007/s12594-009-0174-x
Keywords
Nummulites sp aff. chavannesi de la Harpe; Oligocene; Kutch; Gujarat
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Funding
- University of Calcutta
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Megalospheric form of a striate Nummulites, provisionally identified here as Nummulites sp. aff. chavannesi de la Harpe, is documented from the Early Oligocene rocks of SW Kutch, Gujarat. This striate Nummulites occurs in association with N. fichteli-clipeus Group, N. cf. fichteli, Heterostegina, Operculina and Gypsina. High abundance of microspheric tests of reticulate Nummulites and virtual absence of microspheric tests of striate Nummulites reflect contrasting success of growth and sexual reproduction of the two groups of sympatric Nummulites.
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