| Aneurophytales Temporal range:
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|---|---|
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| Reconstruction of Aneurophyton germanicum | |
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Class: | †Progymnospermopsida |
| Order: | †Aneurophytales Beck (1976) |
| Families | |
The Aneurophytales are an extinct order of progymnosperms, considered among the earliest plants to produce true wood via a vascular cambium. They represent a crucial evolutionary link between simpler trimerophytes and more advanced seed plants.[1]
Description
These plants were spore-bearing, lacked true leaves, and used photosynthetic stems for energy production. They exhibited three-dimensional branching patterns and possessed a lobed or actinostelic stele with secondary xylem. Some species, like Aneurophyton, likely grew as shrubs or climbing vines, while others such as Tetraxylopteris may have had non-self-supporting aerial stems.[2][1][3]
References
- ^ a b "Plant Evolution & Paleobotany - Aneurophytales †". sites.google.com. Retrieved 2025-12-19.
- ^ Lang, W. H. (1926). "II.—Contributions to the Study of the Old Red Sandstone Flora of Scotland. I. On Plant-Remains from the Fish-Beds of Cromarty. II. On a Sporangium-bearing Branch-System from the Stromness Beds". Transactions of the Royal Society of Edinburgh. 54 (2): 253–279. doi:10.1017/S0080456800027599. ISSN 0080-4568.
- ^ Serlin, B.S.; Banks, H. (1979). Palaeontographica Americana (8 ed.). Ithaca, New York: Paleontological Research Institution. pp. 343–359.
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