Psilophyton
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- Evolution of Water Transport and Xylem Structure
- Newsletter 11, 1994
- M23 Tree History Workbook Pub 2018
- Paleozoic Mosses: Small, but No Longer Inconspicuous
- Pb-682 Kj Singh1
- Notes on Fossil Nomenclature Species Living Today, the Forests
- Conserving Maine's Fossil Heritage
- Early Land Plant Phytodebris
- 5Th International Meeting of Agora Paleobotanica
- EARLY EVOLUTION of LAND PLANTS: Phylogeny, Physiology, and Ecology of the Primary Terrestrial Radiation
- Problems in Cladistic Classification: Higher-Level Relationships in Land Plants Peter R
- Jonathan Paul Wilson
- Proceedings of the United States National Museum
- The Structure and Function of Xylem in Seed- Free Vascular Plants: an Evolutionary Perspective
- Plant Paleontology in the State of Maine - a Review
- Apex of the Expanded Base, Most Sporophyllous. Sporangia Are
- A New Anatomically-Preserved Plant from the Lower Devonian of Quebec (Canada): Implications for Euphyllophyte Phylogeny and Early Evolution of Structural Complexity
- Degree Kotyk January, 1998 © Copyright Michele Kotyk, 1998