Wealden Plant Microfossils

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Abstract
One new and several re-interpreted species of Lower Cretaceous age are included in Pyrobolospora, a new organ-genus of large spores bearing neck structures; in Triletes (section Aphanozonati) are placed two other species of megaspores, one emended and one new. These are a small part of a distinctive Wealden assemblage of plant microfossils, which represents a critical period in plant evolution and which should play its part in stratigraphy. Certain difficulties in nomenclature and morphology are discussed.