. . . . . . Fig. 29-7. Origin of land plants (about 475 mya). 1. 2. 3. 1. 2. 3. Origin of vascular plants (about 420 mya). Origin of extant seed plants (about 305 mya). ANCES-TRALGREENALGA. Liverworts. Hornworts. Mosses. Lycophytes (club mosses,spike mosses, quillworts). Pterophytes (ferns,horsetails, whisk ferns).
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