Figure 18.1   Examples of fossil fungi: (a, b) Palaeomyces, a possible oomycete fungus from the Early Devonian Rhynie Chert of Scotland, showing branching nonseptate hyphae terminated by enlarged vesicles (a) and a resting spore (b); and (c) Palaeancistrus, with basidiomycete-like clamp connections, from the Pennsylvanian of North America. (a, b, courtesy of Thomas N. Taylor; c, based on Stewart & Rothwell 1993.)

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