Abstract
Two forms of monocotyledon macrofossil are documented from latest Albian–earliest Cenomanian sediments of the Eromanga Basin, central Queensland, Australia. One form is preserved as strap-shaped leaves with cross-linked parallel venation and epidermal features characteristic of monocots. Its affinities are suggested to be with the Areciflorae and it dominated a community lying between a coastal coal swamp and open marine conditions. A second form is found only as thin, dispersed cuticle, with poor detail, but is most likely also a monocot. It dominated a more inland community. These appear to be the currently known, oldest, organically preserved monocotyledonous macrofossils.
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