Exine intrastructure of Praecolpatites sinuosus (Balme & Hennelly) Bharadwaj & Srivastava, 1969, and Marsupipollenites triradiatus Balme & Hennelly, 1956

C.B. Foster; P.L. Price

doi:10.54991/jop.1981.1411

Authors

C.B. Foster Geological Survey of Queensland, 41 George Street, Brisbane, Australia 4000
P.L. Price Mines Administration Pty Limited, 10 Eagle Street, Brisbane, Australia 4000

DOI:

https://doi.org/10.54991/jop.1981.1411

Keywords:

Exine intrastructure, Praecolpatites, Marsupipollenites, Palynology, Permian (Australia)

Abstract

Transmission electron micrograph studies of pollen grains Praecolpatites sinuosus (Balme & Hennelly) and Marsupipollenites triradiatus Balme & Hennelly, from the Permian of eastern Australia, show that these species have a two-layered exine. In each species, the inner layer (intexine) is laminated, suggesting that they belong to the gymnosperms; the outer layer (exoexine) is structured by small, irregularly shaped intraexinal cavities, and is described as incipient-alveolate. Their exinal structure is closely comparable with that of pollen of certain extant, primitive angiosperms (Magnoliaceae) reported by Walker.

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