Current Research

*Whole plant biology of fossil plants and their use in phylogenetic analysis.
*Evolution of ferns, gymnosperms, and aquatic angiosperms.

*Phylogenetic trends in the Coniferales.
*Reproductive biology of the Araucariaceae and Podocarpaceae, including fossil conifer groups.

*Anatomy and morphology of vascular plants.
* Tertiary plants from chert permineralizations: ferns, gymnosperms, and angiosperms.
*Plant/fungal interactions in the fossil record; fossil mycorrhizae.

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