TRIPROJECTAPERTURATE POLLEN GRAINS FROM THE LATE CRETACEOUS SEDIMENTS OF MEGHALAYA

During palynological investigation of the Late Cretaceous sediments of Meghalaya Basin especially at the K/T boundary level, varieties of triprojectaperturate pollen grains were found associated with diverse type of palynomorphs. The taxa recorded are Aqullapollenites indicus Baksi et Deb, 1976; A. nemuroensis Takahasi, 1981; A. truncatus sp.nov. as well as Farabeipollis gen. nov., with three new species; Integicorpus brevicolpatum sp. nov.; Integricorpus langparensis sp. nov.; Mancicorpus albertensis Srivastava, 1968; Striaticorpus pyriforme (Norton) Farabee, 1990; S. striatum Farabee et al., 1991.The stratigraphic data reveal the low diversity and poor presence of Triprojectaperturate pollen group during the Early Maestrichtian when Normapolles were dominating the flora. Possible diversification actually began after the disappearance of Normapolles group at the Late Maestrichtian.

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Q913.84