Bateman, Richard M. Department of Geology, Royal Museum of Scotland, Edinburgh, United Kingdom.
DiMichele, William A. Department of Paleobiology, Smithsonian Institution, National Museum of Natural History, Washington, DC.
- Living and fossil taxa
- Evolutionary pattern
- Links to Primary Literature
- Additional Readings
A division (formerly Lycopodiophyta) of the subkingdom Embryobionta which represents one of two main lineages that evolved during the Early Devonian from the earliest land plants to develop vascular tissue and multiple sporangia. Integration of living and fossil taxa has allowed tentative reconstruction of the evolutionary history of the lycophyte group (Fig. 1), which is generally regarded as monophyletic (includes all the descendants of a single putative ancestor). The division Lycophyta contains two classes: the extinct Zosterophyllopsida (zosterophylls; Fig. 2) and the Lycopsida (club-mosses; Fig. 3), which contains 10 extant genera. See also: Lycopsida; Zosterophyllopsida
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